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) |
|---|---|
| 4 | 16 |
| 5 | 40 |
| 6 | 168 |
| 7 | 280 |
| 8 | 544 |
| 9 | 1152 |
| 10 | 1560 |
| 11 | 2640 |
| 12 | 3504 |
| 13 | 5824 |
| 14 | 6552 |
| 15 | 12000 |
| 16 | 11456 |
| 17 | 19176 |
| 18 | 18648 |
| 19 | 31312 |
| 20 | 30640 |
| 21 | 50064 |
| 22 | 43736 |
| 23 | 71392 |
| 24 | 62304 |
| 25 | 104800 |
| 26 | 87672 |
| 27 | 141048 |
| 28 | 121968 |
| 29 | 191632 |
| 30 | 154200 |
| 31 | 255192 |
| 32 | 209536 |
| 33 | 327360 |
| 34 | 265880 |
| 35 | 435960 |
| 36 | 328176 |
| 37 | 533688 |
| 38 | 419064 |
| 39 | 649272 |
| 40 | 525280 |