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 | 13 |
| 1 | 3433 |
| 2 | 31591 |
| 3 | 130351 |
| 4 | 370273 |
| 5 | 846613 |
| 6 | 1679323 |
| 7 | 3013051 |
| 8 | 5017141 |
| 9 | 7885633 |
| 10 | 11837263 |
| 11 | 17115463 |
| 12 | 23988361 |
| 13 | 32748781 |
| 14 | 43714243 |
| 15 | 57226963 |
| 16 | 73653853 |
| 17 | 93386521 |
| 18 | 116841271 |
| 19 | 144459103 |
| 20 | 176705713 |
| 21 | 214071493 |
| 22 | 257071531 |
| 23 | 306245611 |