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 | 10 |
| 2 | 52 |
| 3 | 192 |
| 4 | 570 |
| 5 | 1452 |
| 6 | 3300 |
| 7 | 6864 |
| 8 | 13299 |
| 9 | 24310 |
| 10 | 42328 |
| 11 | 70720 |
| 12 | 114036 |
| 13 | 178296 |
| 14 | 271320 |
| 15 | 403104 |
| 16 | 586245 |
| 17 | 836418 |
| 18 | 1172908 |
| 19 | 1619200 |
| 20 | 2203630 |
| 21 | 2960100 |
| 22 | 3928860 |
| 23 | 5157360 |
| 24 | 6701175 |
| 25 | 8625006 |
| 26 | 11003760 |
| 27 | 13923712 |
| 28 | 17483752 |
| 29 | 21796720 |
| 30 | 26990832 |
| 31 | 33211200 |
| 32 | 40621449 |