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 | 10 |
| 2 | 151316 |
| 3 | 7997214 |
| 4 | 118118440 |
| 5 | 922080050 |
| 6 | 4878316860 |
| 7 | 19828978246 |
| 8 | 66593931344 |
| 9 | 193501094490 |
| 10 | 501827040100 |
| 11 | 1187422368110 |
| 12 | 2605282707576 |
| 13 | 5365498355074 |
| 14 | 10470873504140 |
| 15 | 19508549760150 |
| 16 | 34910198169760 |
| 17 | 60297759323306 |
| 18 | 100934312212404 |
| 19 | 164302439443390 |