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 | 2 |
| 2 | 3 |
| 3 | 10 |
| 4 | 21 |
| 5 | 55 |
| 6 | 104 |
| 7 | 221 |
| 8 | 399 |
| 9 | 782 |
| 10 | 1595 |
| 11 | 2759 |
| 12 | 5328 |
| 13 | 9553 |
| 14 | 16211 |
| 15 | 28670 |
| 16 | 52311 |
| 17 | 94223 |
| 18 | 157624 |
| 19 | 280127 |
| 20 | 480315 |
| 21 | 799058 |
| 22 | 1399169 |
| 23 | 2378531 |
| 24 | 4126752 |
| 25 | 7277425 |
| 26 | 12260693 |
| 27 | 20231054 |
| 28 | 34005777 |
| 29 | 56050961 |
| 30 | 94020520 |
| 31 | 170976163 |
| 32 | 285358479 |
| 33 | 482867186 |
| 34 | 792701293 |