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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 13 |
| 6 | 23 |
| 7 | 59 |
| 8 | 105 |
| 9 | 269 |
| 10 | 479 |
| 11 | 1227 |
| 12 | 2185 |
| 13 | 5597 |
| 14 | 9967 |
| 15 | 25531 |
| 16 | 45465 |
| 17 | 116461 |
| 18 | 207391 |
| 19 | 531243 |
| 20 | 946025 |
| 21 | 2423293 |
| 22 | 4315343 |
| 23 | 11053979 |
| 24 | 19684665 |
| 25 | 50423309 |
| 26 | 89792639 |
| 27 | 230008587 |
| 28 | 409593865 |
| 29 | 1049196317 |
| 30 | 1868384047 |
| 31 | 4785964411 |
| 32 | 8522732505 |
| 33 | 21831429421 |
| 34 | 38876894431 |