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 | 12 |
| 2 | 72 |
| 3 | 272 |
| 4 | 762 |
| 5 | 1752 |
| 6 | 3512 |
| 7 | 6372 |
| 8 | 10722 |
| 9 | 17012 |
| 10 | 25752 |
| 11 | 37512 |
| 12 | 52922 |
| 13 | 72672 |
| 14 | 97512 |
| 15 | 128252 |
| 16 | 165762 |
| 17 | 210972 |
| 18 | 264872 |
| 19 | 328512 |
| 20 | 403002 |
| 21 | 489512 |
| 22 | 589272 |
| 23 | 703572 |
| 24 | 833762 |
| 25 | 981252 |
| 26 | 1147512 |
| 27 | 1334072 |
| 28 | 1542522 |
| 29 | 1774512 |
| 30 | 2031752 |
| 31 | 2316012 |
| 32 | 2629122 |
| 33 | 2972972 |
| 34 | 3349512 |