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.

A384671 Expansion of (1-x^2) / (1-2*x-5*x^2+2*x^3).

Table of values

n a(n)
0 1
1 2
2 8
3 24
4 84
5 272
6 916
7 3024
8 10084
9 33456
10 111284
11 369680
12 1228868
13 4083568
14 13572116
15 45104336
16 149902116
17 498181680
18 1655665268
19 5502434704
20 18286832388
21 60774507760
22 201978308052
23 671255490128
24 2230853504996
25 7414027844528
26 24639812233780

List of values

[1, 2, 8, 24, 84, 272, 916, 3024, 10084, 33456, 111284, 369680, 1228868, 4083568, 13572116, 45104336, 149902116, 498181680, 1655665268, 5502434704, 18286832388, 60774507760, 201978308052, 671255490128, 2230853504996, 7414027844528, 24639812233780]