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 | 4 |
| 2 | 6 |
| 3 | 39 |
| 4 | 59 |
| 5 | 386 |
| 6 | 584 |
| 7 | 3821 |
| 8 | 5781 |
| 9 | 37824 |
| 10 | 57226 |
| 11 | 374419 |
| 12 | 566479 |
| 13 | 3706366 |
| 14 | 5607564 |
| 15 | 36689241 |
| 16 | 55509161 |
| 17 | 363186044 |
| 18 | 549484046 |
| 19 | 3595171199 |
| 20 | 5439331299 |
| 21 | 35588525946 |
| 22 | 53843828944 |
| 23 | 352290088261 |
| 24 | 532998958141 |
| 25 | 3487312356664 |