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.

A036068 Expansion of (-1+1/(1-3*x)^3)/(9*x).

Table of values

n a(n)
0 1
1 6
2 30
3 135
4 567
5 2268
6 8748
7 32805
8 120285
9 433026
10 1535274
11 5373459
12 18600435
13 63772920
14 216827928
15 731794257
16 2453663097
17 8178876990
18 27119434230
19 89494132959
20 294052151151
21 962352494676
22 3138105960900
23 10198844372925

List of values

[1, 6, 30, 135, 567, 2268, 8748, 32805, 120285, 433026, 1535274, 5373459, 18600435, 63772920, 216827928, 731794257, 2453663097, 8178876990, 27119434230, 89494132959, 294052151151, 962352494676, 3138105960900, 10198844372925]