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 | 11 |
| 2 | 183 |
| 3 | 2417 |
| 4 | 32499 |
| 5 | 436281 |
| 6 | 5857683 |
| 7 | 78646537 |
| 8 | 1055926979 |
| 9 | 14177123321 |
| 10 | 190345385523 |
| 11 | 2555621823337 |
| 12 | 34312378451619 |
| 13 | 460686046833881 |
| 14 | 6185278996234003 |
| 15 | 83045007601555017 |
| 16 | 1114981764240774019 |
| 17 | 14970006873311301561 |
| 18 | 200990826015513435123 |