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 | 0 |
| 1 | 1 |
| 2 | 126 |
| 3 | 1001 |
| 4 | 3876 |
| 5 | 10630 |
| 6 | 23751 |
| 7 | 46376 |
| 8 | 82251 |
| 9 | 135751 |
| 10 | 211880 |
| 11 | 316251 |
| 12 | 455126 |
| 13 | 635376 |
| 14 | 864501 |
| 15 | 1150630 |
| 16 | 1502501 |
| 17 | 1929501 |
| 18 | 2441626 |
| 19 | 3049501 |
| 20 | 3764380 |
| 21 | 4598126 |
| 22 | 5563251 |
| 23 | 6672876 |
| 24 | 7940751 |
| 25 | 9381255 |
| 26 | 11009376 |
| 27 | 12840751 |
| 28 | 14891626 |
| 29 | 17178876 |
| 30 | 19720005 |
| 31 | 22533126 |