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 | 2 |
| 2 | 5 |
| 3 | 41 |
| 4 | 972 |
| 5 | 44457 |
| 6 | 3271312 |
| 7 | 352087787 |
| 8 | 52098230423 |
| 9 | 10141977387056 |
| 10 | 2513121624034518 |
| 11 | 772525844883337679 |
| 12 | 288558785171538716889 |
| 13 | 128760943237115947732171 |
| 14 | 67665205307818875323789155 |