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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.

A379199 G.f. A(x) satisfies 1/x = Sum_{n=-oo..+oo} A(x)^n * (A(x)^n - 1)^(n+1).

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 4
6 9
7 45
8 164
9 546
10 1493
11 3944
12 10588
13 32997
14 112945
15 396404
16 1330461
17 4265180
18 13292275
19 41778612
20 135378928
21 452828655
22 1534394542
23 5175561385
24 17246318586
25 56998526633
26 188492707958
27 628391304843
28 2115131897264
29 7162685531894
30 24280930956521
31 82152859633099

List of values

[1, 1, 2, 2, 4, 9, 45, 164, 546, 1493, 3944, 10588, 32997, 112945, 396404, 1330461, 4265180, 13292275, 41778612, 135378928, 452828655, 1534394542, 5175561385, 17246318586, 56998526633, 188492707958, 628391304843, 2115131897264, 7162685531894, 24280930956521, 82152859633099]

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

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