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 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 14 |
| 6 | 19 |
| 7 | 21 |
| 8 | 50 |
| 9 | 53 |
| 10 | 136 |
| 11 | 146 |
| 12 | 1255 |
| 13 | 1448 |
| 14 | 1839 |
| 15 | 2053 |
| 16 | 2496 |
| 17 | 4060 |
| 18 | 5041 |
| 19 | 8410 |
| 20 | 14090 |
| 21 | 14940 |
| 22 | 19759 |
| 23 | 29871 |
| 24 | 44836 |
| 25 | 78175 |
| 26 | 114398 |
| 27 | 120946 |
| 28 | 137845 |
| 29 | 461108 |
| 30 | 727496 |
| 31 | 840316 |