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.

A367715 G.f. A(x) satisfies A(x) = 1 / ((1 - x) * (1 - x * (1 + x + x^2 + x^3) * A(x^4))).

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 16
5 33
6 68
7 140
8 288
9 594
10 1225
11 2526
12 5208
13 10740
14 22148
15 45673
16 94184
17 194224
18 400524
19 825950
20 1703249
21 3512395
22 7243168
23 14936668
24 30801992
25 63519044
26 130987274
27 270118452
28 557031032
29 1148694482
30 2368807011
31 4884890405
32 10073490200

List of values

[1, 2, 4, 8, 16, 33, 68, 140, 288, 594, 1225, 2526, 5208, 10740, 22148, 45673, 94184, 194224, 400524, 825950, 1703249, 3512395, 7243168, 14936668, 30801992, 63519044, 130987274, 270118452, 557031032, 1148694482, 2368807011, 4884890405, 10073490200]