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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 13 |
| 5 | 61 |
| 6 | 192 |
| 7 | 483 |
| 8 | 1050 |
| 9 | 2058 |
| 10 | 3732 |
| 11 | 6369 |
| 12 | 10351 |
| 13 | 16159 |
| 14 | 24388 |
| 15 | 35763 |
| 16 | 51156 |
| 17 | 71604 |
| 18 | 98328 |
| 19 | 132753 |
| 20 | 176529 |
| 21 | 231553 |
| 22 | 299992 |
| 23 | 384307 |
| 24 | 487278 |
| 25 | 612030 |
| 26 | 762060 |
| 27 | 941265 |
| 28 | 1153971 |
| 29 | 1404963 |
| 30 | 1699516 |
| 31 | 2043427 |
| 32 | 2443048 |
| 33 | 2905320 |
| 34 | 3437808 |
| 35 | 4048737 |