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 | 5 |
| 2 | 7 |
| 3 | 11 |
| 4 | 19 |
| 5 | 31 |
| 6 | 47 |
| 7 | 79 |
| 8 | 103 |
| 9 | 191 |
| 10 | 239 |
| 11 | 383 |
| 12 | 479 |
| 13 | 863 |
| 14 | 991 |
| 15 | 2687 |
| 16 | 2879 |
| 17 | 3391 |
| 18 | 4799 |
| 19 | 6719 |
| 20 | 9343 |
| 21 | 21503 |
| 22 | 23039 |
| 23 | 36607 |
| 24 | 69119 |
| 25 | 72959 |
| 26 | 126719 |
| 27 | 152063 |
| 28 | 382463 |
| 29 | 602111 |
| 30 | 927743 |
| 31 | 972799 |
| 32 | 1096703 |
| 33 | 1102847 |
| 34 | 1640447 |
| 35 | 1655807 |
| 36 | 1966079 |
| 37 | 3565567 |
| 38 | 3590143 |
| 39 | 4124671 |
| 40 | 5402623 |