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 | 89 |
| 2 | 3916 |
| 3 | 113564 |
| 4 | 2441626 |
| 5 | 41507642 |
| 6 | 581106988 |
| 7 | 6890268572 |
| 8 | 70625252863 |
| 9 | 635627275767 |
| 10 | 5085018206136 |
| 11 | 36519676207704 |
| 12 | 237377895350076 |
| 13 | 1406007533996604 |
| 14 | 7632612327410136 |
| 15 | 38163061637050680 |
| 16 | 176504160071359395 |
| 17 | 757929628541719755 |