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 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 7 |
| 7 | 11 |
| 8 | 28 |
| 9 | 46 |
| 10 | 123 |
| 11 | 207 |
| 12 | 572 |
| 13 | 979 |
| 14 | 2769 |
| 15 | 4797 |
| 16 | 13806 |
| 17 | 24138 |
| 18 | 70414 |
| 19 | 123998 |
| 20 | 365636 |
| 21 | 647615 |
| 22 | 1926505 |
| 23 | 3428493 |
| 24 | 10273870 |
| 25 | 18356714 |
| 26 | 55349155 |
| 27 | 99229015 |
| 28 | 300783420 |
| 29 | 540807165 |
| 30 | 1646828655 |
| 31 | 2968468275 |
| 32 | 9075674700 |