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 | 2 |
2 | 6 |
3 | 21 |
4 | 80 |
5 | 320 |
6 | 1326 |
7 | 5637 |
8 | 24434 |
9 | 107542 |
10 | 479196 |
11 | 2157045 |
12 | 9792702 |
13 | 44780606 |
14 | 206055346 |
15 | 953305632 |
16 | 4431463863 |
17 | 20686696920 |
18 | 96931500840 |
19 | 455722378776 |
20 | 2149086843549 |
21 | 10162544469252 |
22 | 48176923330632 |
23 | 228913129263389 |
24 | 1089973058779915 |
25 | 5199987220813564 |