Triangular number AND sum of first m factorials

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Triangular number AND sum of first m factorials

01-11-2018, 10:21 AM

Post: #11

Paul Dale Offline

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Posts: 1,852
Joined: Dec 2013

RE: Triangular number AND sum of first m factorials

Thanks

Don't let my proof stop your hunt, you'll be able to wile away many hours looking...

I hadn't realised that all square numbers that end in '5' actually end in '25'. I must have seen this before but never noticed or remembered it.

Pauli

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Messages In This Thread

Triangular number AND sum of first m factorials - Joe Horn - 01-09-2018, 04:31 PM

RE: Triangular number AND sum of first m factorials - Gerson W. Barbosa - 01-09-2018, 08:53 PM

RE: Triangular number AND sum of first m factorials - Dieter - 01-09-2018, 10:19 PM

RE: Triangular number AND sum of first m factorials - Gerson W. Barbosa - 01-09-2018, 11:00 PM

RE: Triangular number AND sum of first m factorials - Valentin Albillo - 01-09-2018, 10:16 PM

RE: Triangular number AND sum of first m factorials - John Keith - 01-09-2018, 11:10 PM

RE: Triangular number AND sum of first m factorials - Gerson W. Barbosa - 01-10-2018, 04:03 AM

RE: Triangular number AND sum of first m factorials - Joe Horn - 01-10-2018, 04:58 AM

RE: Triangular number AND sum of first m factorials - Paul Dale - 01-10-2018, 06:35 AM

RE: Triangular number AND sum of first m factorials - Joe Horn - 01-11-2018, 03:01 AM

RE: Triangular number AND sum of first m factorials - Paul Dale - 01-11-2018 10:21 AM

RE: Triangular number AND sum of first m factorials - Gerson W. Barbosa - 01-11-2018, 06:29 PM

RE: Triangular number AND sum of first m factorials - John Keith - 01-11-2018, 10:43 PM

RE: Triangular number AND sum of first m factorials - John Keith - 01-11-2018, 10:30 PM

RE: Triangular number AND sum of first m factorials - John Cadick - 01-11-2018, 02:22 PM

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