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 | 12 |
| 4 | 21 |
| 5 | 27 |
| 6 | 30 |
| 7 | 33 |
| 8 | 44 |
| 9 | 46 |
| 10 | 76 |
| 11 | 78 |
| 12 | 83 |
| 13 | 84 |
| 14 | 92 |
| 15 | 582 |
| 16 | 750 |
| 17 | 787 |
| 18 | 3218 |
| 19 | 3290 |
| 20 | 5617 |
| 21 | 6385 |
| 22 | 13960 |
| 23 | 22705 |
| 24 | 27636 |
| 25 | 36497 |
| 26 | 50349 |
| 27 | 51169 |
| 28 | 70381 |
| 29 | 70486 |
| 30 | 73096 |