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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.

A369102 Expansion of (1/x) * Series_Reversion( x * ((1-x)^4-x^4) ).

Table of values

n a(n)
0 1
1 4
2 26
3 204
4 1772
5 16408
6 158752
7 1585968
8 16235472
9 169423232
10 1795611168
11 19275231872
12 209140483328
13 2289981517312
14 25271472702464
15 280795784911616
16 3138701648319744
17 35270318924758016
18 398215386792574464
19 4515067063939210240
20 51388662166213954560

List of values

[1, 4, 26, 204, 1772, 16408, 158752, 1585968, 16235472, 169423232, 1795611168, 19275231872, 209140483328, 2289981517312, 25271472702464, 280795784911616, 3138701648319744, 35270318924758016, 398215386792574464, 4515067063939210240, 51388662166213954560]

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

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