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.

A123955 Expansion of g.f.: x^5/( (1-3*x) * (1-2*x) * (1-4*x) * (1-6*x+6*x^2) ).

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 1
6 15
7 139
8 1029
9 6691
10 40041
11 226435
12 1230009
13 6487195
14 33464145
15 169720915
16 849504825
17 4208146411
18 20674387905
19 100901918659
20 489826044489
21 2367517203931
22 11402423910801
23 54755709794995
24 262308279256089

List of values

[0, 0, 0, 0, 1, 15, 139, 1029, 6691, 40041, 226435, 1230009, 6487195, 33464145, 169720915, 849504825, 4208146411, 20674387905, 100901918659, 489826044489, 2367517203931, 11402423910801, 54755709794995, 262308279256089]