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(33s) OEIS A2516: EARLIEST SEQUENCE WITH A(A(N)) = 2N
10-22-2022, 10:46 AM
Post: #14
Gerald H Offline
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Joined: May 2014
RE: (33s) OEIS A2516: EARLIEST SEQUENCE WITH A(A(N)) = 2N
An improved version of the previous programme.

I fear the section of line T10

SGN(IP(RMDR(N:4)- 0.1))

is awkward - Could someone with superior arithmetic abilities please suggest a more elegant expression?

Code:
1.    LBL S
2.    x=0?
3.    RTN
4.    STO N
5.    SGN
6.    STO C
1.    LBL T
2.    CLx
3.    RMDR(N:-2)+2
4.    STO* C
5.    STO/ N
6.    ACOSH
7.    x≠0?
8.    GTO T
9.    CLx
10.    C*(N+2+(N-6)*SGN(IP(RMDR(N:4)- 0.1))
11.    RTN

S: LN = 18
T: LN = 80
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RE: (33s) OEIS A2516: EARLIEST SEQUENCE WITH A(A(N)) = 2N - Gerald H - 10-22-2022 10:46 AM



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