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 | 36 |
| 3 | 381 |
| 4 | 2336 |
| 5 | 10326 |
| 6 | 36552 |
| 7 | 110022 |
| 8 | 292512 |
| 9 | 704847 |
| 10 | 1567852 |
| 11 | 3263403 |
| 12 | 6422208 |
| 13 | 12046268 |
| 14 | 21675408 |
| 15 | 37608828 |
| 16 | 63194304 |
| 17 | 103199469 |
| 18 | 164281524 |
| 19 | 255573769 |
| 20 | 389409504 |
| 21 | 582206130 |
| 22 | 855534680 |
| 23 | 1237402530 |
| 24 | 1763779680 |
| 25 | 2480401755 |
| 26 | 3444885756 |
| 27 | 4729197591 |
| 28 | 6422513536 |
| 29 | 8634521016 |
| 30 | 11499207456 |