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 | 6 |
| 3 | 28 |
| 4 | 120 |
| 5 | 316 |
| 6 | 496 |
| 7 | 672 |
| 8 | 1272 |
| 9 | 1431 |
| 10 | 1484 |
| 11 | 1580 |
| 12 | 2212 |
| 13 | 2862 |
| 14 | 3768 |
| 15 | 4452 |
| 16 | 4740 |
| 17 | 5462 |
| 18 | 5724 |
| 19 | 6360 |
| 20 | 7155 |
| 21 | 7584 |
| 22 | 8128 |
| 23 | 11060 |
| 24 | 11448 |
| 25 | 12640 |
| 26 | 13356 |
| 27 | 14310 |
| 28 | 15800 |
| 29 | 16386 |
| 30 | 17696 |
| 31 | 18840 |
| 32 | 22896 |
| 33 | 28620 |
| 34 | 30240 |
| 35 | 32760 |
| 36 | 33180 |
| 37 | 35616 |
| 38 | 37920 |
| 39 | 38712 |