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 | 49 |
| 2 | 1681 |
| 3 | 18490 |
| 4 | 23762 |
| 5 | 39325 |
| 6 | 57121 |
| 7 | 182182 |
| 8 | 453962 |
| 9 | 656914 |
| 10 | 843637 |
| 11 | 1431125 |
| 12 | 1608574 |
| 13 | 1609674 |
| 14 | 1940449 |
| 15 | 2328482 |
| 16 | 2948406 |
| 17 | 3203050 |
| 18 | 3721549 |
| 19 | 5606230 |
| 20 | 6352825 |
| 21 | 8984002 |
| 22 | 10000165 |
| 23 | 13502254 |
| 24 | 19326874 |
| 25 | 19740249 |
| 26 | 21006589 |
| 27 | 26623750 |
| 28 | 35558770 |
| 29 | 38067925 |
| 30 | 46297822 |