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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.

A369623 Expansion of (1/x) * Series_Reversion( x / (1/(1-x)^3 + x^3) ).

Table of values

n a(n)
0 1
1 3
2 15
3 92
4 624
5 4509
6 34033
7 265164
8 2116560
9 17219068
10 142252608
11 1190173956
12 10064038469
13 85873044573
14 738446318232
15 6393218956733
16 55680130965252
17 487488352916496
18 4288083926110045
19 37878037865662422
20 335859658273133355
21 2988274511990407436

List of values

[1, 3, 15, 92, 624, 4509, 34033, 265164, 2116560, 17219068, 142252608, 1190173956, 10064038469, 85873044573, 738446318232, 6393218956733, 55680130965252, 487488352916496, 4288083926110045, 37878037865662422, 335859658273133355, 2988274511990407436]

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

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