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 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 24 |
| 7 | 48 |
| 8 | 72 |
| 9 | 144 |
| 10 | 216 |
| 11 | 432 |
| 12 | 552 |
| 13 | 1104 |
| 14 | 1656 |
| 15 | 2592 |
| 16 | 3936 |
| 17 | 7872 |
| 18 | 10056 |
| 19 | 20112 |
| 20 | 26688 |
| 21 | 42320 |
| 22 | 63480 |
| 23 | 126960 |
| 24 | 154800 |
| 25 | 309600 |
| 26 | 464400 |
| 27 | 737568 |
| 28 | 992160 |
| 29 | 1984320 |
| 30 | 2450880 |
| 31 | 4901760 |
| 32 | 6292800 |
| 33 | 10197312 |
| 34 | 15295968 |
| 35 | 26241696 |
| 36 | 32947488 |
| 37 | 65894976 |
| 38 | 98842464 |
| 39 | 161587872 |
| 40 | 205842528 |