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.

A215715 G.f. satisfies A(x) = (1 + x*A(x)^2) * (1 + x*A(x)^4).

Table of values

n a(n)
0 1
1 2
2 13
3 118
4 1242
5 14227
6 172177
7 2165732
8 28032668
9 370944717
10 4995412647
11 68239105203
12 943278064473
13 13169938895473
14 185453340189492
15 2630813161415976
16 37561512615867450
17 539336703889993006
18 7783290731579783544
19 112828761898680983141
20 1642222504807143423470

List of values

[1, 2, 13, 118, 1242, 14227, 172177, 2165732, 28032668, 370944717, 4995412647, 68239105203, 943278064473, 13169938895473, 185453340189492, 2630813161415976, 37561512615867450, 539336703889993006, 7783290731579783544, 112828761898680983141, 1642222504807143423470]