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 | 1 |
| 2 | 8 |
| 3 | 36 |
| 4 | 156 |
| 5 | 330 |
| 6 | 1080 |
| 7 | 1716 |
| 8 | 4512 |
| 9 | 7101 |
| 10 | 14080 |
| 11 | 19448 |
| 12 | 43776 |
| 13 | 50388 |
| 14 | 91248 |
| 15 | 128160 |
| 16 | 209910 |
| 17 | 245157 |
| 18 | 431424 |
| 19 | 480700 |
| 20 | 800800 |
| 21 | 949806 |
| 22 | 1339624 |
| 23 | 1560780 |
| 24 | 2576376 |
| 25 | 2684190 |
| 26 | 3768960 |
| 27 | 4512144 |
| 28 | 6267472 |
| 29 | 6724520 |
| 30 | 10046160 |
| 31 | 10295472 |
| 32 | 14593272 |
| 33 | 16081065 |
| 34 | 20604816 |
| 35 | 23048220 |