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 | 6 |
| 1 | 126 |
| 2 | 630 |
| 3 | 1950 |
| 4 | 4680 |
| 5 | 9576 |
| 6 | 17556 |
| 7 | 29700 |
| 8 | 47250 |
| 9 | 71610 |
| 10 | 104346 |
| 11 | 147186 |
| 12 | 202020 |
| 13 | 270900 |
| 14 | 356040 |
| 15 | 459816 |
| 16 | 584766 |
| 17 | 733590 |
| 18 | 909150 |
| 19 | 1114470 |
| 20 | 1352736 |
| 21 | 1627296 |
| 22 | 1941660 |
| 23 | 2299500 |
| 24 | 2704650 |
| 25 | 3161106 |
| 26 | 3673026 |
| 27 | 4244730 |
| 28 | 4880700 |
| 29 | 5585580 |
| 30 | 6364176 |
| 31 | 7221456 |
| 32 | 8162550 |