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 | 130 |
| 2 | 230 |
| 3 | 430 |
| 4 | 530 |
| 5 | 630 |
| 6 | 730 |
| 7 | 830 |
| 8 | 930 |
| 9 | 1101 |
| 10 | 2210 |
| 11 | 10110 |
| 12 | 11200 |
| 13 | 23100 |
| 14 | 43100 |
| 15 | 53100 |
| 16 | 63100 |
| 17 | 73100 |
| 18 | 83100 |
| 19 | 93100 |
| 20 | 211100 |
| 21 | 230100 |
| 22 | 311100 |
| 23 | 411100 |
| 24 | 430100 |
| 25 | 511100 |
| 26 | 530100 |
| 27 | 611100 |
| 28 | 630100 |
| 29 | 711100 |
| 30 | 730100 |
| 31 | 811100 |
| 32 | 830100 |
| 33 | 911100 |
| 34 | 930100 |