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 | 10 |
| 2 | 21 |
| 3 | 136 |
| 4 | 153 |
| 5 | 351 |
| 6 | 630 |
| 7 | 780 |
| 8 | 3403 |
| 9 | 3570 |
| 10 | 5671 |
| 11 | 6441 |
| 12 | 6670 |
| 13 | 7503 |
| 14 | 9870 |
| 15 | 10011 |
| 16 | 13366 |
| 17 | 14535 |
| 18 | 16653 |
| 19 | 20301 |
| 20 | 23220 |
| 21 | 33153 |
| 22 | 34716 |
| 23 | 36046 |
| 24 | 36315 |
| 25 | 37950 |
| 26 | 43660 |
| 27 | 46360 |
| 28 | 56616 |
| 29 | 66430 |
| 30 | 93096 |
| 31 | 93961 |
| 32 | 95703 |
| 33 | 112101 |
| 34 | 139656 |
| 35 | 144453 |
| 36 | 159895 |
| 37 | 166753 |
| 38 | 169653 |
| 39 | 187578 |