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.

A371431 Expansion of (1/x) * Series_Reversion( x * ((1-x)^2 + x^3) ).

Table of values

n a(n)
0 1
1 2
2 7
3 29
4 131
5 623
6 3064
7 15423
8 78936
9 408958
10 2137993
11 11252163
12 59508232
13 315786764
14 1679410076
15 8941421014
16 47613443433
17 253359512287
18 1346009853489
19 7133000408765
20 37669665812955
21 198034693198875
22 1035095172883710
23 5371011415598595
24 27615259784888724

List of values

[1, 2, 7, 29, 131, 623, 3064, 15423, 78936, 408958, 2137993, 11252163, 59508232, 315786764, 1679410076, 8941421014, 47613443433, 253359512287, 1346009853489, 7133000408765, 37669665812955, 198034693198875, 1035095172883710, 5371011415598595, 27615259784888724]

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

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