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 | 7 |
| 3 | 29 |
| 4 | 73 |
| 5 | 437 |
| 6 | 169 |
| 7 | 1343 |
| 8 | 3001 |
| 9 | 29809 |
| 10 | 32581 |
| 11 | 388631 |
| 12 | 418661 |
| 13 | 5830673 |
| 14 | 6216773 |
| 15 | 6601157 |
| 16 | 13968079 |
| 17 | 250430303 |
| 18 | 87787741 |
| 19 | 1749648679 |
| 20 | 366225215 |
| 21 | 127494581 |
| 22 | 132902893 |
| 23 | 3180922571 |
| 24 | 9914589163 |
| 25 | 257145392467 |
| 26 | 266412327067 |
| 27 | 2480998948403 |
| 28 | 2564180718503 |