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 | 17 |
| 2 | 97 |
| 3 | 257 |
| 4 | 337 |
| 5 | 881 |
| 6 | 3697 |
| 7 | 10657 |
| 8 | 16561 |
| 9 | 49297 |
| 10 | 65537 |
| 11 | 66977 |
| 12 | 89041 |
| 13 | 149057 |
| 14 | 847601 |
| 15 | 988417 |
| 16 | 1146097 |
| 17 | 1972097 |
| 18 | 2070241 |
| 19 | 2522257 |
| 20 | 2836961 |
| 21 | 3553777 |
| 22 | 3959297 |
| 23 | 4398577 |
| 24 | 5385761 |
| 25 | 7166897 |
| 26 | 11073217 |
| 27 | 17653681 |
| 28 | 32530177 |
| 29 | 41532497 |
| 30 | 44048497 |