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 | 33 |
| 2 | 1089 |
| 3 | 20316 |
| 4 | 370045 |
| 5 | 7174919 |
| 6 | 140346362 |
| 7 | 2748122586 |
| 8 | 53801184855 |
| 9 | 1053901033470 |
| 10 | 20648231159172 |
| 11 | 404572006660088 |
| 12 | 7927242763654571 |
| 13 | 155332036036173579 |
| 14 | 3043718021008444561 |
| 15 | 59641726902710453442 |