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.

A219535 G.f. satisfies A(x) = 1 + x*(2*A(x)^2 + A(x)^3).

Table of values

n a(n)
0 1
1 3
2 21
3 192
4 2001
5 22539
6 267276
7 3287496
8 41556585
9 536565225
10 7046232285
11 93820316412
12 1263673602300
13 17186898452772
14 235709926636296
15 3256050894487824
16 45263067114496665
17 632721425905230213
18 8888476706476318047
19 125418490224196533096
20 1776734673565844413929

List of values

[1, 3, 21, 192, 2001, 22539, 267276, 3287496, 41556585, 536565225, 7046232285, 93820316412, 1263673602300, 17186898452772, 235709926636296, 3256050894487824, 45263067114496665, 632721425905230213, 8888476706476318047, 125418490224196533096, 1776734673565844413929]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.