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 | 2 |
| 3 | 6 |
| 4 | 3 |
| 5 | 12 |
| 6 | 33 |
| 7 | 4 |
| 8 | 24 |
| 9 | 96 |
| 10 | 280 |
| 11 | 5 |
| 12 | 40 |
| 13 | 255 |
| 14 | 1040 |
| 15 | 3145 |
| 16 | 6 |
| 17 | 84 |
| 18 | 780 |
| 19 | 4200 |
| 20 | 15810 |
| 21 | 46956 |
| 22 | 7 |
| 23 | 140 |
| 24 | 2205 |
| 25 | 16408 |
| 26 | 78155 |
| 27 | 279972 |
| 28 | 823585 |
| 29 | 8 |
| 30 | 288 |
| 31 | 6672 |
| 32 | 65840 |
| 33 | 391320 |
| 34 | 1681008 |
| 35 | 5767328 |
| 36 | 16781472 |
| 37 | 9 |
| 38 | 540 |
| 39 | 19755 |
| 40 | 262296 |
| 41 | 1953405 |
| 42 | 10078164 |
| 43 | 40354335 |
| 44 | 134218800 |
| 45 | 387422001 |