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 | 5 |
| 3 | 10 |
| 4 | 53 |
| 5 | 26 |
| 6 | 662 |
| 7 | 50 |
| 8 | 5749 |
| 9 | 7138 |
| 10 | 65630 |
| 11 | 122 |
| 12 | 1151702 |
| 13 | 170 |
| 14 | 11787102 |
| 15 | 9225260 |
| 16 | 168963957 |
| 17 | 290 |
| 18 | 2709216086 |
| 19 | 362 |
| 20 | 34398664078 |
| 21 | 13522807742 |
| 22 | 497634360470 |
| 23 | 530 |
| 24 | 7871610432598 |
| 25 | 2822797526 |
| 26 | 108172480466302 |
| 27 | 21966337136980 |