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) |
|---|---|
| 2 | 7 |
| 3 | 45 |
| 4 | 156 |
| 5 | 400 |
| 6 | 855 |
| 7 | 1617 |
| 8 | 2800 |
| 9 | 4536 |
| 10 | 6975 |
| 11 | 10285 |
| 12 | 14652 |
| 13 | 20280 |
| 14 | 27391 |
| 15 | 36225 |
| 16 | 47040 |
| 17 | 60112 |
| 18 | 75735 |
| 19 | 94221 |
| 20 | 115900 |
| 21 | 141120 |
| 22 | 170247 |
| 23 | 203665 |
| 24 | 241776 |
| 25 | 285000 |
| 26 | 333775 |
| 27 | 388557 |
| 28 | 449820 |
| 29 | 518056 |
| 30 | 593775 |
| 31 | 677505 |
| 32 | 769792 |
| 33 | 871200 |
| 34 | 982311 |