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 | 37 |
| 2 | 122 |
| 3 | 320 |
| 4 | 776 |
| 5 | 1816 |
| 6 | 4168 |
| 7 | 9448 |
| 8 | 21224 |
| 9 | 47336 |
| 10 | 104936 |
| 11 | 231400 |
| 12 | 507880 |
| 13 | 1109992 |
| 14 | 2416616 |
| 15 | 5242856 |
| 16 | 11337704 |
| 17 | 24444904 |
| 18 | 52559848 |
| 19 | 112721896 |
| 20 | 241172456 |
| 21 | 514850792 |
| 22 | 1096810472 |
| 23 | 2332033000 |
| 24 | 4949278696 |
| 25 | 10485759976 |
| 26 | 22179479528 |
| 27 | 46841987048 |
| 28 | 98784247784 |