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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.

A368965 Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x-x^2)^2 ).

Table of values

n a(n)
0 1
1 3
2 17
3 117
4 895
5 7309
6 62410
7 550431
8 4975297
9 45846977
10 429095387
11 4067760593
12 38977419018
13 376901628882
14 3673226867356
15 36043590216621
16 355800292078095
17 3530878133357175
18 35205183620396571
19 352505713454687599
20 3543078943592291301

List of values

[1, 3, 17, 117, 895, 7309, 62410, 550431, 4975297, 45846977, 429095387, 4067760593, 38977419018, 376901628882, 3673226867356, 36043590216621, 355800292078095, 3530878133357175, 35205183620396571, 352505713454687599, 3543078943592291301]

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

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