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 | 8 |
| 4 | 128 |
| 5 | 228 |
| 6 | 648 |
| 7 | 1352 |
| 8 | 1908 |
| 9 | 3240 |
| 10 | 4608 |
| 11 | 5220 |
| 12 | 5976 |
| 13 | 11448 |
| 14 | 13160 |
| 15 | 13920 |
| 16 | 21528 |
| 17 | 22050 |
| 18 | 23760 |
| 19 | 23940 |
| 20 | 24840 |
| 21 | 30960 |
| 22 | 31284 |
| 23 | 31584 |
| 24 | 31968 |
| 25 | 32768 |
| 26 | 37224 |
| 27 | 46092 |
| 28 | 46512 |
| 29 | 47268 |
| 30 | 60480 |
| 31 | 65664 |
| 32 | 66528 |
| 33 | 78540 |
| 34 | 78600 |
| 35 | 81728 |
| 36 | 82800 |
| 37 | 84312 |
| 38 | 98406 |
| 39 | 102672 |
| 40 | 103968 |