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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.

A024293 Expansion of e.g.f. log(1+sin(x)^2)/2 (even-indexed coefficients).

Table of values

n a(n)
0 0
1 1
2 -10
3 256
4 -13840
5 1282816
6 -181649920
7 36478744576
8 -9861412096000
9 3452931391553536
10 -1520176422094766080
11 821908023102140317696
12 -535369559186849435484160
13 413508899951810581475885056
14 -373681769282729298809313034240
15 390605070751731814007608616943616

List of values

[0, 1, -10, 256, -13840, 1282816, -181649920, 36478744576, -9861412096000, 3452931391553536, -1520176422094766080, 821908023102140317696, -535369559186849435484160, 413508899951810581475885056, -373681769282729298809313034240, 390605070751731814007608616943616]

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

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