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.

A371577 G.f. satisfies A(x) = ( 1 + x*A(x)^2 * (1 + x) )^2.

Table of values

n a(n)
0 1
1 2
2 11
3 70
4 505
5 3910
6 31772
7 267280
8 2307982
9 20339946
10 182207333
11 1654250474
12 15187764411
13 140767293560
14 1315349040350
15 12377806027892
16 117200381305538
17 1115791797318548
18 10674418686087377
19 102563189093302366
20 989321056200478417

List of values

[1, 2, 11, 70, 505, 3910, 31772, 267280, 2307982, 20339946, 182207333, 1654250474, 15187764411, 140767293560, 1315349040350, 12377806027892, 117200381305538, 1115791797318548, 10674418686087377, 102563189093302366, 989321056200478417]