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 | 9 |
| 5 | 95 |
| 6 | 420 |
| 7 | 1225 |
| 8 | 2834 |
| 9 | 5652 |
| 10 | 10165 |
| 11 | 16940 |
| 12 | 26625 |
| 13 | 39949 |
| 14 | 57722 |
| 15 | 80835 |
| 16 | 110260 |
| 17 | 147050 |
| 18 | 192339 |
| 19 | 247342 |
| 20 | 313355 |
| 21 | 391755 |
| 22 | 484000 |
| 23 | 591629 |
| 24 | 716262 |
| 25 | 859600 |
| 26 | 1023425 |
| 27 | 1209600 |
| 28 | 1420069 |
| 29 | 1656857 |
| 30 | 1922070 |
| 31 | 2217895 |
| 32 | 2546600 |
| 33 | 2910534 |
| 34 | 3312127 |
| 35 | 3753890 |
| 36 | 4238415 |
| 37 | 4768375 |
| 38 | 5346524 |
| 39 | 5975697 |