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.

A366735 Expansion of g.f. A(x) satisfying 0 = Sum_{n=-oo..+oo} x^n * A(x)^n * (1 + (-x)^(n-1))^(n+1).

Table of values

n a(n)
0 1
1 1
2 4
3 14
4 54
5 218
6 911
7 3917
8 17235
9 77251
10 351498
11 1619362
12 7538944
13 35412306
14 167626988
15 798823025
16 3829325596
17 18453005188
18 89338777895
19 434343634600
20 2119679152092
21 10379998771157
22 50989711920778
23 251194614740028
24 1240735313801625
25 6143268099066535

List of values

[1, 1, 4, 14, 54, 218, 911, 3917, 17235, 77251, 351498, 1619362, 7538944, 35412306, 167626988, 798823025, 3829325596, 18453005188, 89338777895, 434343634600, 2119679152092, 10379998771157, 50989711920778, 251194614740028, 1240735313801625, 6143268099066535]