cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A130288 Record indices of A130280: integers n>0 for which min{ m>1 | (2n+1)^2(m^2-1)+1 is a square} < oo but bigger than for all preceding n.

Original entry on oeis.org

1, 2, 11, 14, 18, 23, 27, 34, 38, 44, 54, 59, 74, 158, 179, 284, 524
Offset: 1

Views

Author

M. F. Hasler, May 24 2007

Keywords

Comments

Most elements of this sequence seem to be 1,2 or 4 times a prime.
Corresponding values of A130280 are given in A130289. - M. F. Hasler, May 24 2007

Crossrefs

Cf. A084702, A130280, A130283, A130284, A130289.

Programs

  • PARI
    A130288(L=999,S=1)={local(R,T);for(n=S,L, if(issquare(n) || R>=T=A130280(n),next); print1(n", ");R=T)}
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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