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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 5 |
| 4 | 7 |
| 5 | 23 |
| 6 | 37 |
| 7 | 101 |
| 8 | 175 |
| 9 | 431 |
| 10 | 781 |
| 11 | 1805 |
| 12 | 3367 |
| 13 | 7463 |
| 14 | 14197 |
| 15 | 30581 |
| 16 | 58975 |
| 17 | 124511 |
| 18 | 242461 |
| 19 | 504605 |
| 20 | 989527 |
| 21 | 2038103 |
| 22 | 4017157 |
| 23 | 8211461 |
| 24 | 16245775 |
| 25 | 33022991 |
| 26 | 65514541 |
| 27 | 132623405 |
| 28 | 263652487 |
| 29 | 532087943 |
| 30 | 1059392917 |
| 31 | 2133134741 |
| 32 | 4251920575 |
| 33 | 8546887871 |