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 | 0 |
| 2 | 1 |
| 3 | 15 |
| 4 | 76 |
| 5 | 275 |
| 6 | 720 |
| 7 | 1666 |
| 8 | 3440 |
| 9 | 6129 |
| 10 | 11250 |
| 11 | 17545 |
| 12 | 28896 |
| 13 | 41405 |
| 14 | 65072 |
| 15 | 85950 |
| 16 | 128960 |
| 17 | 162996 |
| 18 | 238545 |
| 19 | 286995 |
| 20 | 404600 |
| 21 | 482160 |
| 22 | 662112 |
| 23 | 756470 |
| 24 | 1042560 |
| 25 | 1150625 |
| 26 | 1549730 |
| 27 | 1732590 |
| 28 | 2257920 |
| 29 | 2443105 |
| 30 | 3250800 |
| 31 | 3421160 |
| 32 | 4452096 |
| 33 | 4791600 |
| 34 | 6039522 |
| 35 | 6296500 |