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 | 16 |
| 2 | 512 |
| 3 | 11303 |
| 4 | 280642 |
| 5 | 6896530 |
| 6 | 170243005 |
| 7 | 4203272237 |
| 8 | 103785926879 |
| 9 | 2562713574885 |
| 10 | 63279709651014 |
| 11 | 1562532732365521 |
| 12 | 38582817153962988 |
| 13 | 952705725385867657 |
| 14 | 23524674373682096884 |
| 15 | 580882734290938810868 |