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 | 13 |
| 1 | 339 |
| 2 | 8827 |
| 3 | 229841 |
| 4 | 5984693 |
| 5 | 155831859 |
| 6 | 4057613027 |
| 7 | 105653770561 |
| 8 | 2751055647613 |
| 9 | 71633100608499 |
| 10 | 1865211671468587 |
| 11 | 48567136558791761 |
| 12 | 1264610762200054373 |
| 13 | 32928446953760205459 |
| 14 | 857404231559965396307 |
| 15 | 22325438467512860509441 |
| 16 | 581318804386894338641773 |