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 | 3 |
| 2 | 7 |
| 3 | 8 |
| 4 | 25 |
| 5 | 26 |
| 6 | 30 |
| 7 | 121 |
| 8 | 122 |
| 9 | 126 |
| 10 | 144 |
| 11 | 721 |
| 12 | 722 |
| 13 | 726 |
| 14 | 744 |
| 15 | 840 |
| 16 | 5041 |
| 17 | 5042 |
| 18 | 5046 |
| 19 | 5064 |
| 20 | 5160 |
| 21 | 5760 |
| 22 | 40321 |
| 23 | 40322 |
| 24 | 40326 |
| 25 | 40344 |
| 26 | 40440 |
| 27 | 41040 |
| 28 | 45360 |
| 29 | 362881 |
| 30 | 362882 |
| 31 | 362886 |
| 32 | 362904 |
| 33 | 363000 |
| 34 | 363600 |
| 35 | 367920 |
| 36 | 403200 |
| 37 | 3628801 |
| 38 | 3628802 |
| 39 | 3628806 |
| 40 | 3628824 |
| 41 | 3628920 |
| 42 | 3629520 |
| 43 | 3633840 |
| 44 | 3669120 |
| 45 | 3991680 |