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 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 75 |
| 5 | 2355 |
| 6 | 11475 |
| 7 | 31995 |
| 8 | 57075 |
| 9 | 80311 |
| 10 | 196185 |
| 11 | 215325 |
| 12 | 335115 |
| 13 | 991875 |
| 14 | 1009545 |
| 15 | 1038375 |
| 16 | 1169715 |
| 17 | 1185675 |
| 18 | 1193655 |
| 19 | 3507751 |
| 20 | 5503095 |
| 21 | 8412525 |
| 22 | 8618475 |
| 23 | 8670915 |
| 24 | 9513075 |
| 25 | 11384343 |
| 26 | 12689415 |
| 27 | 13587735 |
| 28 | 13708695 |
| 29 | 14101815 |
| 30 | 14841255 |
| 31 | 16002525 |
| 32 | 17409015 |
| 33 | 21856635 |
| 34 | 22195875 |
| 35 | 22307805 |
| 36 | 25948755 |