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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.

A157315 G.f.: A(x) = sin( Sum_{n>=0} 2^((2n+1)^2) * C(2n,n)/4^n * x^(2n+1)/(2n+1) ); alternating zeros omitted.

Table of values

n a(n)
1 2
2 84
3 2516412
4 25131689308776
5 73459034127708442263660
6 59475400379433834763260101514326040
7 12984879931670595437855043594849682375333268239320

List of values

[2, 84, 2516412, 25131689308776, 73459034127708442263660, 59475400379433834763260101514326040, 12984879931670595437855043594849682375333268239320]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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