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 | 139501439 |
| 2 | 196377335 |
| 3 | 206238815 |
| 4 | 239875559 |
| 5 | 287432495 |
| 6 | 336545495 |
| 7 | 353107799 |
| 8 | 381626399 |
| 9 | 394426655 |
| 10 | 406335215 |
| 11 | 461829599 |
| 12 | 464972255 |
| 13 | 577901519 |
| 14 | 592557119 |
| 15 | 649351295 |
| 16 | 653067359 |
| 17 | 674628479 |
| 18 | 761212655 |
| 19 | 775931519 |
| 20 | 777724415 |
| 21 | 929892095 |
| 22 | 993625919 |
| 23 | 1073352959 |