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.

A155116 a(n) = 3*a(n-1) + 3*a(n-2), n>2, a(0)=1, a(1)=2, a(2)=8.

Table of values

n a(n)
0 1
1 2
2 8
3 30
4 114
5 432
6 1638
7 6210
8 23544
9 89262
10 338418
11 1283040
12 4864374
13 18442242
14 69919848
15 265086270
16 1005018354
17 3810313872
18 14445996678
19 54768931650
20 207644784984
21 787241149902
22 2984657804658
23 11315696863680
24 42901064005014

List of values

[1, 2, 8, 30, 114, 432, 1638, 6210, 23544, 89262, 338418, 1283040, 4864374, 18442242, 69919848, 265086270, 1005018354, 3810313872, 14445996678, 54768931650, 207644784984, 787241149902, 2984657804658, 11315696863680, 42901064005014]