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 | 1 |
| 2 | 10 |
| 3 | 5 |
| 4 | 42 |
| 5 | 14 |
| 6 | 60 |
| 7 | 15 |
| 8 | 110 |
| 9 | 22 |
| 10 | 5460 |
| 11 | 910 |
| 12 | 420 |
| 13 | 60 |
| 14 | 2040 |
| 15 | 255 |
| 16 | 11970 |
| 17 | 1330 |
| 18 | 23100 |
| 19 | 2310 |
| 20 | 15180 |
| 21 | 1380 |
| 22 | 163800 |
| 23 | 13650 |
| 24 | 3276 |
| 25 | 252 |
| 26 | 8120 |
| 27 | 580 |
| 28 | 286440 |
| 29 | 19096 |
| 30 | 314160 |
| 31 | 19635 |
| 32 | 3570 |
| 33 | 210 |
| 34 | 11515140 |
| 35 | 639730 |
| 36 | 103740 |
| 37 | 5460 |