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.
n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 25 |
4 | 75 |
5 | 225 |
6 | 674 |
7 | 2022 |
8 | 6066 |
9 | 18196 |
10 | 54588 |
11 | 163764 |
12 | 491291 |
13 | 1473873 |
14 | 4421619 |
15 | 13264856 |
16 | 39794568 |
17 | 119383704 |
18 | 358151111 |
19 | 1074453333 |
20 | 3223359999 |
21 | 9670079995 |
22 | 29010239985 |
23 | 87030719955 |
24 | 261092159865 |
25 | 783276479595 |