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 | 0 |
| 5 | 2 |
| 6 | 2 |
| 7 | 7 |
| 8 | 5 |
| 9 | 26 |
| 10 | 22 |
| 11 | 91 |
| 12 | 79 |
| 13 | 326 |
| 14 | 301 |
| 15 | 1186 |
| 16 | 1117 |
| 17 | 4352 |
| 18 | 4212 |
| 19 | 16119 |
| 20 | 15849 |
| 21 | 60174 |
| 22 | 60089 |
| 23 | 226146 |
| 24 | 228426 |
| 25 | 854803 |
| 26 | 872404 |
| 27 | 3247207 |
| 28 | 3342579 |
| 29 | 12389106 |
| 30 | 12850662 |
| 31 | 47448984 |
| 32 | 49544820 |
| 33 | 182338754 |
| 34 | 191529007 |
| 35 | 702807040 |
| 36 | 742163178 |
| 37 | 2716205709 |
| 38 | 2882119756 |