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 | 4 |
| 4 | 6 |
| 5 | 14 |
| 6 | 24 |
| 7 | 52 |
| 8 | 84 |
| 9 | 120 |
| 10 | 240 |
| 11 | 548 |
| 12 | 688 |
| 13 | 1784 |
| 14 | 2600 |
| 15 | 4236 |
| 16 | 5796 |
| 17 | 16200 |
| 18 | 17568 |
| 19 | 49968 |
| 20 | 55648 |
| 21 | 101360 |
| 22 | 176792 |
| 23 | 433736 |
| 24 | 430032 |
| 25 | 728784 |
| 26 | 1360928 |
| 27 | 2304840 |
| 28 | 2990856 |
| 29 | 8682912 |
| 30 | 7877376 |
| 31 | 25243200 |
| 32 | 27946656 |
| 33 | 46758912 |
| 34 | 81457248 |
| 35 | 121546416 |
| 36 | 114388320 |
| 37 | 442583952 |