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 | 79 |
| 2 | 139 |
| 3 | 271 |
| 4 | 331 |
| 5 | 349 |
| 6 | 421 |
| 7 | 661 |
| 8 | 691 |
| 9 | 739 |
| 10 | 751 |
| 11 | 829 |
| 12 | 859 |
| 13 | 1201 |
| 14 | 1231 |
| 15 | 1249 |
| 16 | 1321 |
| 17 | 1459 |
| 18 | 1489 |
| 19 | 1669 |
| 20 | 1699 |
| 21 | 1831 |
| 22 | 1879 |
| 23 | 2011 |
| 24 | 2131 |
| 25 | 2161 |
| 26 | 2551 |
| 27 | 2659 |
| 28 | 2749 |
| 29 | 2791 |
| 30 | 3049 |
| 31 | 3061 |
| 32 | 3109 |
| 33 | 3229 |
| 34 | 3319 |
| 35 | 3541 |
| 36 | 3691 |
| 37 | 3739 |
| 38 | 3919 |
| 39 | 3931 |
| 40 | 4021 |
| 41 | 4159 |
| 42 | 4519 |