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 | 1 |
2 | 2 |
3 | 5 |
4 | 15 |
5 | 52 |
6 | 204 |
7 | 891 |
8 | 4266 |
9 | 22092 |
10 | 122358 |
11 | 718282 |
12 | 4438154 |
13 | 28711805 |
14 | 193700970 |
15 | 1358588449 |
16 | 9883071724 |
17 | 74423630202 |
18 | 579231718432 |
19 | 4652864427983 |
20 | 38528749877802 |
21 | 328519744186940 |
22 | 2881366257269722 |
23 | 25969840412367362 |
24 | 240307819488203558 |
25 | 2280902112035109237 |
26 | 22187847195528993904 |
27 | 221024332987155498348 |