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 | 9 |
| 2 | 419 |
| 3 | 35052 |
| 4 | 3932898 |
| 5 | 525079969 |
| 6 | 78585936821 |
| 7 | 12747573200724 |
| 8 | 2194994259274978 |
| 9 | 395736626092691782 |
| 10 | 73998168736285644408 |
| 11 | 14252983638239681717320 |
| 12 | 2813522889710891871593558 |
| 13 | 566979470344349452319862891 |
| 14 | 116289126161824019718614903183 |