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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.

A368968 Expansion of (1/x) * Series_Reversion( x * (1-x)^2 * (1-x-x^3)^2 ).

Table of values

n a(n)
0 1
1 4
2 26
3 206
4 1813
5 17030
6 167229
7 1695920
8 17624932
9 186722580
10 2009077416
11 21894695420
12 241170873096
13 2680761546396
14 30032284769832
15 338744791093796
16 3843699928567438
17 43844993166845920
18 502497843180361288
19 5783367971991398760
20 66815895492710846218

List of values

[1, 4, 26, 206, 1813, 17030, 167229, 1695920, 17624932, 186722580, 2009077416, 21894695420, 241170873096, 2680761546396, 30032284769832, 338744791093796, 3843699928567438, 43844993166845920, 502497843180361288, 5783367971991398760, 66815895492710846218]

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

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