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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 4 |
| 9 | 8 |
| 10 | 16 |
| 11 | 32 |
| 12 | 64 |
| 13 | 192 |
| 14 | 576 |
| 15 | 1728 |
| 16 | 5184 |
| 17 | 15552 |
| 18 | 46656 |
| 19 | 186624 |
| 20 | 746496 |
| 21 | 2985984 |
| 22 | 11943936 |
| 23 | 47775744 |
| 24 | 191102976 |
| 25 | 955514880 |
| 26 | 4777574400 |
| 27 | 23887872000 |
| 28 | 119439360000 |
| 29 | 597196800000 |
| 30 | 2985984000000 |
| 31 | 17915904000000 |
| 32 | 107495424000000 |
| 33 | 644972544000000 |