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 | 5 |
| 4 | 10 |
| 5 | 2640 |
| 6 | 8304 |
| 7 | 11699 |
| 8 | 15330 |
| 9 | 16810 |
| 10 | 16910 |
| 11 | 22463 |
| 12 | 25906 |
| 13 | 26652 |
| 14 | 35950 |
| 15 | 72429 |
| 16 | 75470 |
| 17 | 134141 |
| 18 | 142413 |
| 19 | 194711 |
| 20 | 270353 |
| 21 | 296073 |
| 22 | 371964 |
| 23 | 496254 |
| 24 | 654609 |
| 25 | 1640679 |
| 26 | 1729409 |
| 27 | 1854680 |
| 28 | 4434965 |
| 29 | 4973898 |
| 30 | 5584120 |
| 31 | 5783816 |