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 | 139 |
| 2 | 151 |
| 3 | 331 |
| 4 | 619 |
| 5 | 811 |
| 6 | 1231 |
| 7 | 1279 |
| 8 | 1291 |
| 9 | 1471 |
| 10 | 1579 |
| 11 | 1699 |
| 12 | 1999 |
| 13 | 2239 |
| 14 | 2251 |
| 15 | 2371 |
| 16 | 2659 |
| 17 | 3271 |
| 18 | 3331 |
| 19 | 3391 |
| 20 | 3499 |
| 21 | 3631 |
| 22 | 3919 |
| 23 | 4051 |
| 24 | 4159 |
| 25 | 4231 |
| 26 | 4759 |
| 27 | 5059 |
| 28 | 5839 |
| 29 | 6079 |
| 30 | 6619 |
| 31 | 6691 |
| 32 | 6991 |
| 33 | 7219 |
| 34 | 7639 |
| 35 | 8059 |
| 36 | 8599 |
| 37 | 8731 |
| 38 | 8971 |
| 39 | 9151 |
| 40 | 9319 |
| 41 | 9679 |
| 42 | 9739 |
| 43 | 10099 |
| 44 | 10459 |
| 45 | 10771 |