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) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 7 |
| 6 | 16 |
| 7 | 33 |
| 8 | 52 |
| 9 | 99 |
| 10 | 246 |
| 11 | 338 |
| 12 | 750 |
| 13 | 1255 |
| 14 | 1608 |
| 15 | 2585 |
| 16 | 5110 |
| 17 | 9782 |
| 18 | 12074 |
| 19 | 22240 |
| 20 | 32987 |
| 21 | 40024 |
| 22 | 70478 |
| 23 | 101693 |
| 24 | 173672 |
| 25 | 345837 |
| 26 | 483325 |
| 27 | 570076 |
| 28 | 789635 |
| 29 | 927404 |
| 30 | 1274113 |
| 31 | 3725322 |
| 32 | 5010683 |
| 33 | 7755766 |
| 34 | 8953854 |
| 35 | 18108385 |
| 36 | 20792118 |
| 37 | 31316304 |
| 38 | 46828022 |
| 39 | 61000699 |