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 | 1 |
| 1 | 44 |
| 2 | 135 |
| 3 | 80 |
| 4 | 8991 |
| 5 | 29888 |
| 6 | 123200 |
| 7 | 2316032 |
| 8 | 1043199 |
| 9 | 24151040 |
| 10 | 217713663 |
| 11 | 689278976 |
| 12 | 11573190656 |
| 13 | 76876660736 |
| 14 | 311969153024 |
| 15 | 2035980763136 |
| 16 | 2741258240000 |
| 17 | 215189482110975 |