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 | 2 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 12 |
| 6 | 24 |
| 7 | 36 |
| 8 | 72 |
| 9 | 144 |
| 10 | 252 |
| 11 | 504 |
| 12 | 864 |
| 13 | 1728 |
| 14 | 2952 |
| 15 | 5904 |
| 16 | 11808 |
| 17 | 21888 |
| 18 | 43776 |
| 19 | 79920 |
| 20 | 159840 |
| 21 | 290160 |
| 22 | 580320 |
| 23 | 1051200 |
| 24 | 2102400 |
| 25 | 4204800 |
| 26 | 8010000 |
| 27 | 16020000 |
| 28 | 30189600 |
| 29 | 60379200 |
| 30 | 113252400 |
| 31 | 226504800 |
| 32 | 423828000 |
| 33 | 847656000 |
| 34 | 1584075600 |