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 | 1 |
| 3 | 3 |
| 4 | 1 |
| 5 | 9 |
| 6 | 6 |
| 7 | 1 |
| 8 | 18 |
| 9 | 36 |
| 10 | 10 |
| 11 | 1 |
| 12 | 30 |
| 13 | 120 |
| 14 | 100 |
| 15 | 15 |
| 16 | 1 |
| 17 | 45 |
| 18 | 300 |
| 19 | 500 |
| 20 | 225 |
| 21 | 21 |
| 22 | 1 |
| 23 | 63 |
| 24 | 630 |
| 25 | 1750 |
| 26 | 1575 |
| 27 | 441 |
| 28 | 28 |
| 29 | 1 |
| 30 | 84 |
| 31 | 1176 |
| 32 | 4900 |
| 33 | 7350 |
| 34 | 4116 |
| 35 | 784 |
| 36 | 36 |
| 37 | 1 |
| 38 | 108 |
| 39 | 2016 |
| 40 | 11760 |
| 41 | 26460 |
| 42 | 24696 |
| 43 | 9408 |
| 44 | 1296 |
| 45 | 45 |
| 46 | 1 |
| 47 | 135 |
| 48 | 3240 |
| 49 | 25200 |
| 50 | 79380 |
| 51 | 111132 |
| 52 | 70560 |
| 53 | 19440 |