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 | 0 |
| 2 | 1 |
| 3 | 9 |
| 4 | 11 |
| 5 | 13 |
| 6 | 22 |
| 7 | 30 |
| 8 | 31 |
| 9 | 138 |
| 10 | 300 |
| 11 | 304 |
| 12 | 305 |
| 13 | 331 |
| 14 | 438 |
| 15 | 969 |
| 16 | 1141 |
| 17 | 1413 |
| 18 | 2367 |
| 19 | 3000 |
| 20 | 3144 |
| 21 | 3881 |
| 22 | 9854 |
| 23 | 30000 |
| 24 | 30605 |
| 25 | 72062 |
| 26 | 106801 |
| 27 | 114141 |
| 28 | 125206 |
| 29 | 128348 |
| 30 | 300000 |
| 31 | 315165 |
| 32 | 963304 |
| 33 | 980560 |
| 34 | 989154 |
| 35 | 2378507 |
| 36 | 3000000 |
| 37 | 3040604 |
| 38 | 3045679 |
| 39 | 3152290 |
| 40 | 3932806 |