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 | 16 |
| 2 | 108 |
| 3 | 281 |
| 4 | 574 |
| 5 | 1156 |
| 6 | 2271 |
| 7 | 4339 |
| 8 | 8008 |
| 9 | 14257 |
| 10 | 24519 |
| 11 | 40840 |
| 12 | 66082 |
| 13 | 104179 |
| 14 | 160456 |
| 15 | 242022 |
| 16 | 358249 |
| 17 | 521350 |
| 18 | 747070 |
| 19 | 1055505 |
| 20 | 1472065 |
| 21 | 2028598 |
| 22 | 2764693 |
| 23 | 3729181 |
| 24 | 4981854 |
| 25 | 6595423 |
| 26 | 8657737 |
| 27 | 11274286 |
| 28 | 14571012 |
| 29 | 18697453 |
| 30 | 23830246 |