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.

A217925 G.f. A(x) satisfies A(x) = 1 + x*A(x)*A(x^2)^2.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 5
5 10
6 19
7 40
8 77
9 155
10 306
11 610
12 1207
13 2400
14 4760
15 9456
16 18765
17 37257
18 73955
19 146813
20 291434
21 578524
22 1148434
23 2279720
24 4525487
25 8983421
26 17832976
27 35399824
28 70271944
29 139495472
30 276910976
31 549691232
32 1091185133
33 2166094309
34 4299884233
35 8535634803
36 16943967775

List of values

[1, 1, 1, 3, 5, 10, 19, 40, 77, 155, 306, 610, 1207, 2400, 4760, 9456, 18765, 37257, 73955, 146813, 291434, 578524, 1148434, 2279720, 4525487, 8983421, 17832976, 35399824, 70271944, 139495472, 276910976, 549691232, 1091185133, 2166094309, 4299884233, 8535634803, 16943967775]

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

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