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 | 3 |
| 3 | 10 |
| 4 | 35 |
| 5 | 126 |
| 6 | 462 |
| 7 | 1716 |
| 8 | 2339 |
| 9 | 4627 |
| 10 | 2378 |
| 11 | 1332 |
| 12 | 4238 |
| 13 | 2198 |
| 14 | 5148 |
| 15 | 1260 |
| 16 | 57635 |
| 17 | 14740 |
| 18 | 85026 |
| 19 | 61732 |
| 20 | 64410 |
| 21 | 100509 |
| 22 | 163716 |
| 23 | 158172 |
| 24 | 171918 |
| 25 | 93876 |
| 26 | 309780 |
| 27 | 148969 |
| 28 | 444220 |
| 29 | 268280 |
| 30 | 370712 |
| 31 | 29792 |
| 32 | 532771 |
| 33 | 652200 |
| 34 | 938386 |
| 35 | 816466 |
| 36 | 907874 |