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.

A036725 G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 2 generated by (1,2)(3,4)(5,6)(7,8).

Table of values

n a(n)
0 1
1 1
2 4
3 32
4 268
5 2574
6 26004
7 274752
8 2990412
9 33321801
10 378155340
11 4355839608
12 50792907100
13 598432565856
14 7112882558060
15 85186232560504
16 1026982086302284
17 12453151958594288
18 151785836438975264
19 1858565360218893144
20 22851521570687098564

List of values

[1, 1, 4, 32, 268, 2574, 26004, 274752, 2990412, 33321801, 378155340, 4355839608, 50792907100, 598432565856, 7112882558060, 85186232560504, 1026982086302284, 12453151958594288, 151785836438975264, 1858565360218893144, 22851521570687098564]