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) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 47 |
| 3 | 259 |
| 4 | 861 |
| 5 | 2171 |
| 6 | 4603 |
| 7 | 8667 |
| 8 | 14969 |
| 9 | 24211 |
| 10 | 37191 |
| 11 | 54803 |
| 12 | 78037 |
| 13 | 107979 |
| 14 | 145811 |
| 15 | 192811 |
| 16 | 250353 |
| 17 | 319907 |
| 18 | 403039 |
| 19 | 501411 |
| 20 | 616781 |
| 21 | 751003 |
| 22 | 906027 |
| 23 | 1083899 |
| 24 | 1286761 |
| 25 | 1516851 |
| 26 | 1776503 |
| 27 | 2068147 |
| 28 | 2394309 |
| 29 | 2757611 |
| 30 | 3160771 |