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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.

A317340 G.f. A(x) satisfies: 1+x = Sum_{n>=0} ((1+x)^(n+1) - A(x))^n.

Table of values

n a(n)
0 1
1 1
2 5
3 19
4 215
5 3221
6 60255
7 1328529
8 33525557
9 949932155
10 29820028655
11 1026798211345
12 38478492170097
13 1559272992752559
14 67959179777259427
15 3170787800382000429
16 157723858411070076821
17 8334021579932292731707
18 466249346920348934320021
19 27536331208734157654465035
20 1712202839967112789793314087
21 111816679758439520925160452089

List of values

[1, 1, 5, 19, 215, 3221, 60255, 1328529, 33525557, 949932155, 29820028655, 1026798211345, 38478492170097, 1559272992752559, 67959179777259427, 3170787800382000429, 157723858411070076821, 8334021579932292731707, 466249346920348934320021, 27536331208734157654465035, 1712202839967112789793314087, 111816679758439520925160452089]

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

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