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 | 6 |
| 3 | 28 |
| 4 | 140 |
| 5 | 728 |
| 6 | 1638 |
| 7 | 2184 |
| 8 | 3640 |
| 9 | 8008 |
| 10 | 8190 |
| 11 | 10920 |
| 12 | 18620 |
| 13 | 23808 |
| 14 | 23895 |
| 15 | 27846 |
| 16 | 37128 |
| 17 | 47790 |
| 18 | 55860 |
| 19 | 69160 |
| 20 | 148960 |
| 21 | 166656 |
| 22 | 189810 |
| 23 | 237510 |
| 24 | 242060 |
| 25 | 316680 |
| 26 | 334530 |
| 27 | 359600 |
| 28 | 406215 |
| 29 | 446880 |
| 30 | 484120 |
| 31 | 525690 |
| 32 | 669060 |
| 33 | 726180 |
| 34 | 1029952 |
| 35 | 1078800 |
| 36 | 1089270 |
| 37 | 1099170 |