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 | 3 |
| 3 | 11 |
| 4 | 18 |
| 5 | 36 |
| 6 | 48 |
| 7 | 58 |
| 8 | 188 |
| 9 | 351 |
| 10 | 366 |
| 11 | 576 |
| 12 | 1111 |
| 13 | 3941 |
| 14 | 11106 |
| 15 | 12423 |
| 16 | 17981 |
| 17 | 18263 |
| 18 | 34976 |
| 19 | 365423 |
| 20 | 392711 |
| 21 | 585963 |
| 22 | 1111411 |
| 23 | 1494106 |
| 24 | 568817576 |
| 25 | 1494099506 |
| 26 | 3651623506 |
| 27 | 12382820048 |
| 28 | 351330663666 |
| 29 | 586117934576 |
| 30 | 37888432565023 |