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.

A309702 G.f. A(x) satisfies: A(x) = A(x^2) / (1 - x - x^2 - x^3).

Table of values

n a(n)
0 1
1 1
2 3
3 5
4 12
5 20
6 42
7 74
8 148
9 264
10 506
11 918
12 1730
13 3154
14 5876
15 10760
16 19938
17 36574
18 67536
19 124048
20 228664
21 420248
22 773878
23 1422790
24 2618646
25 4815314
26 8859904
27 16293864
28 29974958
29 55128726
30 101408308
31 186511992
32 343068964
33 630989264
34 1160606794
35 2134665022

List of values

[1, 1, 3, 5, 12, 20, 42, 74, 148, 264, 506, 918, 1730, 3154, 5876, 10760, 19938, 36574, 67536, 124048, 228664, 420248, 773878, 1422790, 2618646, 4815314, 8859904, 16293864, 29974958, 55128726, 101408308, 186511992, 343068964, 630989264, 1160606794, 2134665022]

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

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