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.

A093379 Expansion of x(1-2x-2x^2)/((1+x)(1-2x)(1-3x)).

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 12
5 31
6 82
7 225
8 632
9 1811
10 5262
11 15445
12 45652
13 135591
14 404042
15 1206665
16 3609072
17 10805371
18 32372422
19 97029885
20 290914892
21 872395151
22 2616486402
23 7848061105
24 23541387112
25 70618568931
26 211844521982
27 635511196325

List of values

[0, 1, 2, 5, 12, 31, 82, 225, 632, 1811, 5262, 15445, 45652, 135591, 404042, 1206665, 3609072, 10805371, 32372422, 97029885, 290914892, 872395151, 2616486402, 7848061105, 23541387112, 70618568931, 211844521982, 635511196325]