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 | 0 |
| 2 | 2 |
| 3 | 8 |
| 4 | 56 |
| 5 | 60 |
| 6 | 62 |
| 7 | 224 |
| 8 | 234 |
| 9 | 236 |
| 10 | 240 |
| 11 | 242 |
| 12 | 546 |
| 13 | 558 |
| 14 | 560 |
| 15 | 648 |
| 16 | 650 |
| 17 | 654 |
| 18 | 672 |
| 19 | 674 |
| 20 | 702 |
| 21 | 704 |
| 22 | 40992 |
| 23 | 40994 |
| 24 | 43746 |
| 25 | 43758 |
| 26 | 43760 |
| 27 | 43820 |
| 28 | 43904 |
| 29 | 43962 |
| 30 | 43964 |
| 31 | 43976 |
| 32 | 43980 |
| 33 | 43982 |
| 34 | 44226 |
| 35 | 44232 |
| 36 | 44234 |
| 37 | 44280 |
| 38 | 44282 |
| 39 | 44286 |
| 40 | 45224 |
| 41 | 45258 |
| 42 | 45260 |
| 43 | 45704 |