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.

A365880 Expansion of (1/x) * Series_Reversion( x*(1+x)^4*(1-x)^5 ).

Table of values

n a(n)
0 1
1 1
2 6
3 21
4 116
5 566
6 3176
7 17501
8 101391
9 590756
10 3519782
11 21163038
12 128845344
13 790810400
14 4894134376
15 30486741869
16 191068074202
17 1203710067455
18 7619193325238
19 48430121151156
20 309011352878208
21 1978450305442086
22 12706836843595840

List of values

[1, 1, 6, 21, 116, 566, 3176, 17501, 101391, 590756, 3519782, 21163038, 128845344, 790810400, 4894134376, 30486741869, 191068074202, 1203710067455, 7619193325238, 48430121151156, 309011352878208, 1978450305442086, 12706836843595840]