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 | 17 |
| 4 | 37 |
| 5 | 257 |
| 6 | 457 |
| 7 | 1297 |
| 8 | 2557 |
| 9 | 4357 |
| 10 | 6481 |
| 11 | 8009 |
| 12 | 11953 |
| 13 | 26321 |
| 14 | 44101 |
| 15 | 47521 |
| 16 | 47881 |
| 17 | 49681 |
| 18 | 57241 |
| 19 | 65537 |
| 20 | 74449 |
| 21 | 84421 |
| 22 | 97813 |
| 23 | 141157 |
| 24 | 157081 |
| 25 | 165601 |
| 26 | 225457 |
| 27 | 278497 |
| 28 | 310591 |
| 29 | 333433 |
| 30 | 365941 |
| 31 | 403901 |
| 32 | 419711 |
| 33 | 476737 |
| 34 | 557041 |
| 35 | 560737 |
| 36 | 576721 |
| 37 | 1011961 |
| 38 | 1033057 |