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 | 2 |
| 2 | 4 |
| 3 | 16 |
| 4 | 12 |
| 5 | 22 |
| 6 | 28 |
| 7 | 30 |
| 8 | 22 |
| 9 | 138 |
| 10 | 12 |
| 11 | 102 |
| 12 | 180 |
| 13 | 426 |
| 14 | 1444 |
| 15 | 9502 |
| 16 | 6568 |
| 17 | 2212 |
| 18 | 5380 |
| 19 | 9942 |
| 20 | 3034 |
| 21 | 24222 |
| 22 | 31530 |
| 23 | 2962 |
| 24 | 7848 |
| 25 | 93280 |
| 26 | 3718 |