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 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 8 |
| 5 | 7 |
| 6 | 27 |
| 7 | 45 |
| 8 | 102 |
| 9 | 194 |
| 10 | 439 |
| 11 | 844 |
| 12 | 1775 |
| 13 | 3608 |
| 14 | 7342 |
| 15 | 14891 |
| 16 | 30283 |
| 17 | 61113 |
| 18 | 123625 |
| 19 | 249355 |
| 20 | 502430 |
| 21 | 1011305 |
| 22 | 2034028 |
| 23 | 4086860 |
| 24 | 8206874 |
| 25 | 16469851 |
| 26 | 33035697 |
| 27 | 66234208 |
| 28 | 132746099 |
| 29 | 265961186 |
| 30 | 532718115 |
| 31 | 1066778721 |
| 32 | 2135822309 |
| 33 | 4275459594 |
| 34 | 8557335615 |
| 35 | 17125445126 |
| 36 | 34268966022 |
| 37 | 68568212859 |
| 38 | 137187104632 |