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 | 38 |
| 2 | 418 |
| 3 | 2490 |
| 4 | 10119 |
| 5 | 31880 |
| 6 | 83972 |
| 7 | 193852 |
| 8 | 404589 |
| 9 | 779938 |
| 10 | 1410134 |
| 11 | 2418406 |
| 12 | 3968211 |
| 13 | 6271188 |
| 14 | 9595832 |
| 15 | 14276888 |
| 16 | 20725465 |
| 17 | 29439870 |
| 18 | 41017162 |
| 19 | 56165426 |
| 20 | 75716767 |
| 21 | 100641024 |
| 22 | 132060204 |
| 23 | 171263636 |
| 24 | 219723845 |
| 25 | 279113146 |
| 26 | 351320958 |