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.

A078006 Expansion of (1-x)/(1-x-2*x^2-2*x^3).

Table of values

n a(n)
0 1
1 0
2 2
3 4
4 8
5 20
6 44
7 100
8 228
9 516
10 1172
11 2660
12 6036
13 13700
14 31092
15 70564
16 160148
17 363460
18 824884
19 1872100
20 4248788
21 9642756
22 21884532
23 49667620
24 112722196
25 255826500
26 580606132
27 1317703524
28 2990568788
29 6787188100
30 15403732724
31 34959246500
32 79341088148
33 180067046596

List of values

[1, 0, 2, 4, 8, 20, 44, 100, 228, 516, 1172, 2660, 6036, 13700, 31092, 70564, 160148, 363460, 824884, 1872100, 4248788, 9642756, 21884532, 49667620, 112722196, 255826500, 580606132, 1317703524, 2990568788, 6787188100, 15403732724, 34959246500, 79341088148, 180067046596]