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 | 15 |
3 | 81 |
4 | 441 |
5 | 2403 |
6 | 13095 |
7 | 71361 |
8 | 388881 |
9 | 2119203 |
10 | 11548575 |
11 | 62933841 |
12 | 342957321 |
13 | 1868942403 |
14 | 10184782455 |
15 | 55501867521 |
16 | 302456857761 |
17 | 1648235544003 |
18 | 8982042690735 |
19 | 48947549512401 |
20 | 266739169002201 |