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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 10 |
| 5 | 21 |
| 6 | 44 |
| 7 | 75 |
| 8 | 132 |
| 9 | 240 |
| 10 | 420 |
| 11 | 672 |
| 12 | 1155 |
| 13 | 1818 |
| 14 | 2970 |
| 15 | 4752 |
| 16 | 7392 |
| 17 | 11286 |
| 18 | 17710 |
| 19 | 26460 |
| 20 | 40128 |
| 21 | 60192 |
| 22 | 89178 |
| 23 | 130520 |
| 24 | 192150 |
| 25 | 278036 |
| 26 | 401940 |
| 27 | 577920 |
| 28 | 825396 |
| 29 | 1168640 |
| 30 | 1658784 |
| 31 | 2326280 |
| 32 | 3256110 |
| 33 | 4544064 |
| 34 | 6302720 |
| 35 | 8706555 |
| 36 | 12008636 |
| 37 | 16444120 |
| 38 | 22476960 |