cp's OEIS Frontend

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.

A120017 The 2nd self-composition of A120010; g.f.: A(x) = G(G(x)), where G(x) = g.f. of A120010.

Table of values

n a(n)
1 1
2 2
3 4
4 10
5 32
6 116
7 440
8 1708
9 6760
10 27232
11 111392
12 461536
13 1933024
14 8170400
15 34807232
16 149304080
17 644298592
18 2795216576
19 12184415360
20 53338632256
21 234393350912
22 1033614750080
23 4572427361536
24 20285780245120
25 90238113332992

List of values

[1, 2, 4, 10, 32, 116, 440, 1708, 6760, 27232, 111392, 461536, 1933024, 8170400, 34807232, 149304080, 644298592, 2795216576, 12184415360, 53338632256, 234393350912, 1033614750080, 4572427361536, 20285780245120, 90238113332992]

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

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