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 | 4 |
| 2 | 666 |
| 3 | 28182 |
| 4 | 45054 |
| 5 | 51315 |
| 6 | 82628 |
| 7 | 239932 |
| 8 | 454454 |
| 9 | 864468 |
| 10 | 2594952 |
| 11 | 2976792 |
| 12 | 3189813 |
| 13 | 3355533 |
| 14 | 4172714 |
| 15 | 4890984 |
| 16 | 5319135 |
| 17 | 5367635 |
| 18 | 5777775 |
| 19 | 7149417 |
| 20 | 7247427 |
| 21 | 8068608 |
| 22 | 8079708 |
| 23 | 8100018 |
| 24 | 8280828 |
| 25 | 8627268 |
| 26 | 9227229 |
| 27 | 9423249 |
| 28 | 21699612 |
| 29 | 22544522 |
| 30 | 24166142 |
| 31 | 27677672 |