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 | 349 |
| 3 | 419 |
| 4 | 769 |
| 5 | 839 |
| 6 | 1049 |
| 7 | 1259 |
| 8 | 1399 |
| 9 | 1609 |
| 10 | 1889 |
| 11 | 2029 |
| 12 | 2099 |
| 13 | 2239 |
| 14 | 2309 |
| 15 | 2659 |
| 16 | 2729 |
| 17 | 2939 |
| 18 | 3079 |
| 19 | 3359 |
| 20 | 3499 |
| 21 | 3709 |
| 22 | 3779 |
| 23 | 3919 |
| 24 | 3989 |
| 25 | 4129 |
| 26 | 4339 |
| 27 | 4409 |
| 28 | 4549 |
| 29 | 4759 |
| 30 | 4969 |
| 31 | 5039 |
| 32 | 5179 |
| 33 | 5669 |
| 34 | 5879 |
| 35 | 6089 |
| 36 | 6229 |
| 37 | 6299 |
| 38 | 6719 |
| 39 | 7069 |
| 40 | 7349 |
| 41 | 7489 |
| 42 | 7559 |
| 43 | 7699 |