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 | 1 |
| 2 | 10 |
| 3 | 19 |
| 4 | 181 |
| 5 | 190 |
| 6 | 361 |
| 7 | 3430 |
| 8 | 3439 |
| 9 | 3610 |
| 10 | 6859 |
| 11 | 65161 |
| 12 | 65170 |
| 13 | 65341 |
| 14 | 68590 |
| 15 | 130321 |
| 16 | 1238050 |
| 17 | 1238059 |
| 18 | 1238230 |
| 19 | 1241479 |
| 20 | 1303210 |
| 21 | 2476099 |
| 22 | 23522941 |
| 23 | 23522950 |
| 24 | 23523121 |
| 25 | 23526370 |
| 26 | 23588101 |
| 27 | 24760990 |
| 28 | 47045881 |
| 29 | 446935870 |