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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.

A365696 G.f. satisfies A(x) = 1 + x^4*A(x)^2 / (1 - x*A(x)).

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 1
5 1
6 1
7 1
8 3
9 6
10 10
11 15
12 26
13 49
14 92
15 165
16 294
17 535
18 994
19 1852
20 3437
21 6379
22 11905
23 22344
24 42058
25 79260
26 149601
27 283038
28 536806
29 1020066
30 1941317
31 3699922
32 7062308
33 13500402
34 25842489
35 49528164
36 95031920
37 182545222
38 351023451
39 675678911
40 1301838177

List of values

[1, 0, 0, 0, 1, 1, 1, 1, 3, 6, 10, 15, 26, 49, 92, 165, 294, 535, 994, 1852, 3437, 6379, 11905, 22344, 42058, 79260, 149601, 283038, 536806, 1020066, 1941317, 3699922, 7062308, 13500402, 25842489, 49528164, 95031920, 182545222, 351023451, 675678911, 1301838177]

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

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