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) |
|---|---|
| 0 | 1 |
| 1 | 18 |
| 2 | 114 |
| 3 | 438 |
| 4 | 1263 |
| 5 | 3024 |
| 6 | 6356 |
| 7 | 12132 |
| 8 | 21501 |
| 9 | 35926 |
| 10 | 57222 |
| 11 | 87594 |
| 12 | 129675 |
| 13 | 186564 |
| 14 | 261864 |
| 15 | 359720 |
| 16 | 484857 |
| 17 | 642618 |
| 18 | 839002 |
| 19 | 1080702 |
| 20 | 1375143 |
| 21 | 1730520 |
| 22 | 2155836 |
| 23 | 2660940 |
| 24 | 3256565 |
| 25 | 3954366 |
| 26 | 4766958 |
| 27 | 5707954 |
| 28 | 6792003 |
| 29 | 8034828 |
| 30 | 9453264 |
| 31 | 11065296 |
| 32 | 12890097 |
| 33 | 14948066 |
| 34 | 17260866 |
| 35 | 19851462 |
| 36 | 22744159 |