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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 208 |
| 7 | 211 |
| 8 | 489 |
| 9 | 39765 |
| 10 | 41689 |
| 11 | 43545 |
| 12 | 45772 |
| 13 | 1226372 |
| 14 | 2028209 |
| 15 | 3131006 |
| 16 | 5639781 |
| 17 | 45224913 |
| 18 | 402664481 |
| 19 | 509561899 |
| 20 | 534611505 |
| 21 | 30392347941 |
| 22 | 37824872279 |
| 23 | 42100531202 |
| 24 | 67332408085 |
| 25 | 208185050013 |
| 26 | 363340615629 |
| 27 | 1316050604902 |
| 28 | 1792459658755 |
| 29 | 2465601425469 |