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 | 5 |
| 2 | 50 |
| 3 | 265 |
| 4 | 996 |
| 5 | 2985 |
| 6 | 7610 |
| 7 | 17185 |
| 8 | 35320 |
| 9 | 67341 |
| 10 | 120770 |
| 11 | 205865 |
| 12 | 336220 |
| 13 | 529425 |
| 14 | 807786 |
| 15 | 1199105 |
| 16 | 1737520 |
| 17 | 2464405 |
| 18 | 3429330 |
| 19 | 4691081 |
| 20 | 6318740 |
| 21 | 8392825 |
| 22 | 11006490 |
| 23 | 14266785 |
| 24 | 18295976 |
| 25 | 23232925 |
| 26 | 29234530 |
| 27 | 36477225 |
| 28 | 45158540 |
| 29 | 55498721 |
| 30 | 67742410 |
| 31 | 82160385 |
| 32 | 99051360 |