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.

A381911 Expansion of (1/x) * Series_Reversion( x * (1-x) / B(x) ), where B(x) is the g.f. of A001764.

Table of values

n a(n)
0 1
1 2
2 9
3 55
4 394
5 3102
6 25969
7 226891
8 2045342
9 18883205
10 177640462
11 1696658418
12 16408796013
13 160366113609
14 1581329919636
15 15713344659359
16 157187582466527
17 1581676730708500
18 15998326150898211
19 162571286470135097
20 1658893916098102321
21 16991130941208846890

List of values

[1, 2, 9, 55, 394, 3102, 25969, 226891, 2045342, 18883205, 177640462, 1696658418, 16408796013, 160366113609, 1581329919636, 15713344659359, 157187582466527, 1581676730708500, 15998326150898211, 162571286470135097, 1658893916098102321, 16991130941208846890]