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 | 1637 |
| 2 | 2693 |
| 3 | 20981 |
| 4 | 22469 |
| 5 | 40709 |
| 6 | 42773 |
| 7 | 49253 |
| 8 | 65957 |
| 9 | 69557 |
| 10 | 123653 |
| 11 | 140837 |
| 12 | 235877 |
| 13 | 451013 |
| 14 | 623621 |
| 15 | 626693 |
| 16 | 716549 |
| 17 | 1095557 |
| 18 | 1370597 |
| 19 | 1634693 |
| 20 | 1761989 |
| 21 | 2289461 |
| 22 | 2459813 |
| 23 | 2548229 |
| 24 | 2563493 |
| 25 | 2821733 |
| 26 | 3414533 |
| 27 | 4091909 |
| 28 | 4093637 |
| 29 | 4910981 |
| 30 | 5530901 |
| 31 | 5727461 |