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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.

A369270 Expansion of (1/x) * Series_Reversion( x * (1-x)^3 / (1+x^3)^3 ).

Table of values

n a(n)
0 1
1 3
2 15
3 94
4 657
5 4902
6 38233
7 307953
8 2541831
9 21386810
10 182754162
11 1581699162
12 13836248406
13 122139271098
14 1086638457429
15 9733419373534
16 87707244737511
17 794505072627735
18 7231017033165776
19 66089527981542462
20 606340568510978940
21 5582088822346925210

List of values

[1, 3, 15, 94, 657, 4902, 38233, 307953, 2541831, 21386810, 182754162, 1581699162, 13836248406, 122139271098, 1086638457429, 9733419373534, 87707244737511, 794505072627735, 7231017033165776, 66089527981542462, 606340568510978940, 5582088822346925210]

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

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