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 | 7 |
| 3 | 13 |
| 4 | 23 |
| 5 | 43 |
| 6 | 67 |
| 7 | 97 |
| 8 | 127 |
| 9 | 179 |
| 10 | 181 |
| 11 | 757 |
| 12 | 1109 |
| 13 | 1399 |
| 14 | 8933 |
| 15 | 12613 |
| 16 | 18917 |
| 17 | 49193 |
| 18 | 53831 |
| 19 | 71023 |
| 20 | 199909 |
| 21 | 221317 |
| 22 | 408379 |
| 23 | 821771 |
| 24 | 1330519 |
| 25 | 17427659 |
| 26 | 30196487 |
| 27 | 988142237 |
| 28 | 1397537747 |
| 29 | 1586875049 |
| 30 | 2760703019 |
| 31 | 4128019327 |
| 32 | 7021048691 |