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 | 4 |
| 3 | 6 |
| 4 | 24 |
| 5 | 10 |
| 6 | 156 |
| 7 | 14 |
| 8 | 528 |
| 9 | 747 |
| 10 | 1620 |
| 11 | 22 |
| 12 | 15000 |
| 13 | 26 |
| 14 | 12572 |
| 15 | 60780 |
| 16 | 98336 |
| 17 | 34 |
| 18 | 397908 |
| 19 | 38 |
| 20 | 1484840 |
| 21 | 1500324 |
| 22 | 495660 |
| 23 | 46 |
| 24 | 18514992 |
| 25 | 9765675 |
| 26 | 2768948 |
| 27 | 28697868 |
| 28 | 85098552 |
| 29 | 58 |
| 30 | 375843660 |
| 31 | 62 |
| 32 | 570425408 |
| 33 | 471565380 |
| 34 | 75759684 |
| 35 | 2626093820 |
| 36 | 7623165384 |
| 37 | 74 |
| 38 | 378536012 |