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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.

A369510 Expansion of (1/x) * Series_Reversion( x * ((1-x)^2-x^2)^2 ).

Table of values

n a(n)
0 1
1 4
2 28
3 240
4 2288
5 23296
6 248064
7 2728704
8 30764800
9 353633280
10 4128783360
11 48827351040
12 583674642432
13 7041154416640
14 85610725769216
15 1048040981594112
16 12907157115568128
17 159802897621319680
18 1987875305403187200
19 24833149969036738560
20 311409431144819589120

List of values

[1, 4, 28, 240, 2288, 23296, 248064, 2728704, 30764800, 353633280, 4128783360, 48827351040, 583674642432, 7041154416640, 85610725769216, 1048040981594112, 12907157115568128, 159802897621319680, 1987875305403187200, 24833149969036738560, 311409431144819589120]

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

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