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 | 55 |
| 2 | 89 |
| 3 | 233 |
| 4 | 377 |
| 5 | 5702887 |
| 6 | 9227465 |
| 7 | 24157817 |
| 8 | 39088169 |
| 9 | 7778742049 |
| 10 | 86267571272 |
| 11 | 139583862445 |
| 12 | 591286729879 |
| 13 | 956722026041 |
| 14 | 2504730781961 |
| 15 | 4052739537881 |
| 16 | 61305790721611591 |
| 17 | 99194853094755497 |
| 18 | 259695496911122585 |
| 19 | 420196140727489673 |
| 20 | 135301852344706746049 |