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.

A363140 Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^n * (A(x) + x^(2*n))^(2*n+1).

Table of values

n a(n)
0 1
1 2
2 5
3 20
4 86
5 396
6 1887
7 9277
8 46748
9 240189
10 1253474
11 6625814
12 35401302
13 190878795
14 1037296173
15 5675580349
16 31240459117
17 172871809365
18 961124621229
19 5366264076784
20 30076030970681
21 169149177823245
22 954301797559301
23 5399467787889483
24 30631118027908197

List of values

[1, 2, 5, 20, 86, 396, 1887, 9277, 46748, 240189, 1253474, 6625814, 35401302, 190878795, 1037296173, 5675580349, 31240459117, 172871809365, 961124621229, 5366264076784, 30076030970681, 169149177823245, 954301797559301, 5399467787889483, 30631118027908197]