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 | 35 |
| 2 | 966 |
| 3 | 24970 |
| 4 | 631631 |
| 5 | 15857205 |
| 6 | 397027996 |
| 7 | 9931080740 |
| 8 | 248325446061 |
| 9 | 6208571999575 |
| 10 | 155218222621826 |
| 11 | 3880490869237710 |
| 12 | 97012589464171291 |
| 13 | 2425317596203339145 |
| 14 | 60632965641474990456 |
| 15 | 1515824372664398367880 |