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) |
|---|---|
| 1 | 20 |
| 2 | 69 |
| 3 | 285 |
| 4 | 749 |
| 5 | 2813 |
| 6 | 4589 |
| 7 | 10149 |
| 8 | 14119 |
| 9 | 24907 |
| 10 | 49675 |
| 11 | 60613 |
| 12 | 102749 |
| 13 | 139613 |
| 14 | 160951 |
| 15 | 209947 |
| 16 | 300667 |
| 17 | 414357 |
| 18 | 457813 |
| 19 | 606151 |
| 20 | 721011 |
| 21 | 783511 |
| 22 | 992477 |
| 23 | 1150629 |
| 24 | 1418037 |
| 25 | 1834951 |
| 26 | 2071011 |
| 27 | 2196269 |
| 28 | 2461749 |
| 29 | 2602157 |
| 30 | 2898789 |
| 31 | 4113149 |
| 32 | 4513613 |
| 33 | 5161749 |
| 34 | 5390839 |
| 35 | 6638395 |
| 36 | 6909013 |
| 37 | 7764749 |