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) |
|---|---|
| 4 | 1 |
| 5 | 4 |
| 6 | 11 |
| 7 | 29 |
| 8 | 76 |
| 9 | 196 |
| 10 | 487 |
| 11 | 1148 |
| 12 | 2552 |
| 13 | 5353 |
| 14 | 10636 |
| 15 | 20120 |
| 16 | 36425 |
| 17 | 63415 |
| 18 | 106630 |
| 19 | 173821 |
| 20 | 275603 |
| 21 | 426242 |
| 22 | 644593 |
| 23 | 955207 |
| 24 | 1389626 |
| 25 | 1987886 |
| 26 | 2800249 |
| 27 | 3889186 |
| 28 | 5331634 |
| 29 | 7221551 |
| 30 | 9672794 |
| 31 | 12822346 |
| 32 | 16833919 |
| 33 | 21901961 |
| 34 | 28256096 |