The calculator I always wanted

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The calculator I always wanted

09-17-2019, 08:25 AM (This post was last modified: 09-17-2019 08:26 AM by EdS2.)

Post: #10

EdS2

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RE: The calculator I always wanted

(09-16-2019 08:33 PM)vanLudwig Wrote: I wondered for which integers n is the sum of the first n primes itself prime? 2 is prime. 2+3=5 is prime. 2+3+5=10 is not. 2+3+5+7=17 is prime. 2+3+5+7+11=28 is not.

Some resources at the OEIS:
https://oeis.org/A013916

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The calculator I always wanted - vanLudwig - 09-08-2019, 04:29 PM

RE: The calculator I always wanted - Nigel (UK) - 09-09-2019, 10:04 AM

RE: The calculator I always wanted - vanLudwig - 09-09-2019, 01:51 PM

RE: The calculator I always wanted - lrdheat - 09-09-2019, 02:59 PM

RE: The calculator I always wanted - johnksellers - 09-11-2019, 05:52 PM

RE: The calculator I always wanted - vanLudwig - 09-11-2019, 08:18 PM

RE: The calculator I always wanted - vanLudwig - 09-12-2019, 08:55 PM

RE: The calculator I always wanted - vanLudwig - 09-16-2019, 08:33 PM

RE: The calculator I always wanted - Valentin Albillo - 09-17-2019, 01:51 AM

RE: The calculator I always wanted - EdS2 - 09-17-2019 08:25 AM

RE: The calculator I always wanted - vanLudwig - 09-27-2019, 05:28 PM

RE: The calculator I always wanted - vanLudwig - 10-12-2019, 08:42 PM

RE: The calculator I always wanted - jpcuzzourt - 10-13-2019, 01:48 PM

RE: The calculator I always wanted - vanLudwig - 10-13-2019, 04:57 PM

RE: The calculator I always wanted - cdmackay - 10-13-2019, 08:14 PM

RE: The calculator I always wanted - cdmackay - 10-13-2019, 10:03 AM

RE: The calculator I always wanted - vanLudwig - 10-14-2019, 06:46 PM

RE: The calculator I always wanted - cdmackay - 10-14-2019, 08:43 PM

RE: The calculator I always wanted - vanLudwig - 10-15-2019, 02:02 AM

RE: The calculator I always wanted - cdmackay - 10-15-2019, 03:23 PM

RE: The calculator I always wanted - cdmackay - 10-15-2019, 10:18 PM

RE: The calculator I always wanted - cdmackay - 10-15-2019, 10:24 PM

RE: The calculator I always wanted - vanLudwig - 10-16-2019, 12:17 AM

RE: The calculator I always wanted - cdmackay - 10-16-2019, 11:33 AM

RE: The calculator I always wanted - vanLudwig - 10-20-2019, 11:36 PM

RE: The calculator I always wanted - vanLudwig - 10-31-2019, 03:36 PM

RE: The calculator I always wanted - rprosperi - 10-31-2019, 07:57 PM

RE: The calculator I always wanted - vanLudwig - 10-31-2019, 08:34 PM

RE: The calculator I always wanted - rprosperi - 10-31-2019, 09:47 PM

RE: The calculator I always wanted - vanLudwig - 11-09-2019, 08:38 PM

RE: The calculator I always wanted - vanLudwig - 11-11-2019, 02:20 PM

RE: The calculator I always wanted - vanLudwig - 11-14-2019, 02:37 PM

RE: The calculator I always wanted - cdmackay - 11-14-2019, 02:48 PM

RE: The calculator I always wanted - vanLudwig - 03-21-2020, 05:19 PM

RE: The calculator I always wanted - vanLudwig - 04-13-2020, 09:37 PM

RE: The calculator I always wanted - vanLudwig - 03-14-2021, 06:29 AM

RE: The calculator I always wanted - vanLudwig - 03-14-2021, 07:05 PM

RE: The calculator I always wanted - john gustaf stebbins - 03-14-2021, 08:22 PM

RE: The calculator I always wanted - vanLudwig - 03-14-2021, 09:42 PM

RE: The calculator I always wanted - cdmackay - 03-14-2021, 08:45 PM

RE: The calculator I always wanted - john gustaf stebbins - 03-14-2021, 11:16 PM

RE: The calculator I always wanted - vanLudwig - 03-25-2021, 02:11 PM

RE: The calculator I always wanted - BINUBALL - 03-31-2021, 12:13 AM

RE: The calculator I always wanted - vanLudwig - 03-30-2021, 07:52 PM

RE: The calculator I always wanted - vanLudwig - 03-31-2021, 12:24 AM

RE: The calculator I always wanted - BINUBALL - 03-31-2021, 01:32 AM

RE: The calculator I always wanted - vanLudwig - 03-31-2021, 07:21 PM

RE: The calculator I always wanted - BINUBALL - 03-31-2021, 11:51 PM

RE: The calculator I always wanted - vanLudwig - 04-01-2021, 12:17 AM

RE: The calculator I always wanted - BINUBALL - 04-01-2021, 12:31 AM

RE: The calculator I always wanted - vanLudwig - 04-01-2021, 02:36 PM

RE: The calculator I always wanted - vanLudwig - 04-07-2021, 06:10 PM

RE: The calculator I always wanted - BINUBALL - 04-12-2021, 07:02 AM

RE: The calculator I always wanted - vanLudwig - 04-13-2021, 11:11 PM

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