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 | 1023456789 |
| 2 | 1026753849 |
| 3 | 12584301976 |
| 4 | 338920744561 |
| 5 | 2817036000549 |
| 6 | 16157819263041 |
| 7 | 1727094849536 |
| 8 | 13685690504052736 |
| 9 | 1628413597910449 |
| 10 | 3656158440062976 |
| 11 | 2384185791015625 |
| 12 | 129746337890625 |
| 13 | 1490116119384765625 |
| 14 | 168377826559400929 |
| 15 | 2862423051509815793 |