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.

A216373 G.f.: Sum_{n>=0} x^n / Product_{k=0..n} (1 - (2*k-1)*x)^2.

Table of values

n a(n)
0 1
1 1
2 3
3 12
4 65
5 419
6 3088
7 25557
8 233687
9 2331092
10 25130877
11 290632455
12 3583432896
13 46864388137
14 647273948043
15 9406216355420
16 143356121222905
17 2284850518224363
18 37988158312023376
19 657378186247162493
20 11816449728615690079
21 220230214060016856164

List of values

[1, 1, 3, 12, 65, 419, 3088, 25557, 233687, 2331092, 25130877, 290632455, 3583432896, 46864388137, 647273948043, 9406216355420, 143356121222905, 2284850518224363, 37988158312023376, 657378186247162493, 11816449728615690079, 220230214060016856164]