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.

A120893 a(n) = 3*a(n-1) + 3*a(n-2) - a(n-3); a(0)=1, a(1)=1, a(2)=5.

Table of values

n a(n)
0 1
1 1
2 5
3 17
4 65
5 241
6 901
7 3361
8 12545
9 46817
10 174725
11 652081
12 2433601
13 9082321
14 33895685
15 126500417
16 472105985
17 1761923521
18 6575588101
19 24540428881
20 91586127425
21 341804080817
22 1275630195845
23 4760716702561
24 17767236614401

List of values

[1, 1, 5, 17, 65, 241, 901, 3361, 12545, 46817, 174725, 652081, 2433601, 9082321, 33895685, 126500417, 472105985, 1761923521, 6575588101, 24540428881, 91586127425, 341804080817, 1275630195845, 4760716702561, 17767236614401]