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 | 8 |
| 2 | 34 |
| 3 | 40 |
| 4 | 64 |
| 5 | 111 |
| 6 | 219 |
| 7 | 443 |
| 8 | 904 |
| 9 | 1860 |
| 10 | 3856 |
| 11 | 8015 |
| 12 | 16659 |
| 13 | 34647 |
| 14 | 72088 |
| 15 | 150004 |
| 16 | 312144 |
| 17 | 649555 |
| 18 | 1351723 |
| 19 | 2812951 |
| 20 | 5853784 |
| 21 | 12181816 |
| 22 | 25350576 |
| 23 | 52755019 |
| 24 | 109784179 |
| 25 | 228462939 |
| 26 | 475435704 |
| 27 | 989390720 |
| 28 | 2058940864 |
| 29 | 4284695031 |