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 | 3 |
| 2 | 5 |
| 3 | 53 |
| 4 | 173 |
| 5 | 293 |
| 6 | 2477 |
| 7 | 9173 |
| 8 | 22613 |
| 9 | 27653 |
| 10 | 61613 |
| 11 | 74093 |
| 12 | 92333 |
| 13 | 170957 |
| 14 | 360293 |
| 15 | 679733 |
| 16 | 847997 |
| 17 | 2004917 |
| 18 | 69009533 |
| 19 | 76553573 |
| 20 | 138473837 |
| 21 | 237536213 |
| 22 | 777133013 |
| 23 | 883597853 |
| 24 | 1728061733 |
| 25 | 2050312613 |
| 26 | 5534091197 |
| 27 | 9447241877 |
| 28 | 49107823133 |
| 29 | 65315700413 |