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 | 0 |
| 4 | 1 |
| 5 | 5 |
| 6 | 13 |
| 7 | 35 |
| 8 | 49 |
| 9 | 126 |
| 10 | 161 |
| 11 | 330 |
| 12 | 301 |
| 13 | 715 |
| 14 | 757 |
| 15 | 1365 |
| 16 | 1377 |
| 17 | 2380 |
| 18 | 1837 |
| 19 | 3876 |
| 20 | 3841 |
| 21 | 5985 |
| 22 | 5941 |
| 23 | 8855 |
| 24 | 7297 |
| 25 | 12650 |
| 26 | 12481 |
| 27 | 17550 |
| 28 | 17249 |
| 29 | 23751 |
| 30 | 16801 |
| 31 | 31465 |
| 32 | 30913 |
| 33 | 40920 |
| 34 | 40257 |
| 35 | 52360 |
| 36 | 46981 |
| 37 | 66045 |
| 38 | 64981 |
| 39 | 82251 |
| 40 | 80881 |
| 41 | 101270 |
| 42 | 84841 |
| 43 | 123410 |
| 44 | 121441 |