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 | 3 |
| 2 | 5 |
| 3 | 11 |
| 4 | 19 |
| 5 | 31 |
| 6 | 233 |
| 7 | 739 |
| 8 | 2207 |
| 9 | 4871 |
| 10 | 47933 |
| 11 | 76103 |
| 12 | 82723 |
| 13 | 128663 |
| 14 | 391273 |
| 15 | 521041 |
| 16 | 769423 |
| 17 | 2036833 |
| 18 | 3724997 |
| 19 | 14722933 |
| 20 | 31957817 |
| 21 | 87574217 |
| 22 | 167518933 |
| 23 | 478372393 |
| 24 | 656640899 |
| 25 | 749613233 |
| 26 | 861934273 |
| 27 | 9083114473 |
| 28 | 29862785453 |
| 29 | 95892456511 |
| 30 | 160534630967 |
| 31 | 566082728429 |
| 32 | 574273844491 |