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 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 4 |
| 6 | 2 |
| 7 | 6 |
| 8 | 8 |
| 9 | 18 |
| 10 | 16 |
| 11 | 24 |
| 12 | 20 |
| 13 | 28 |
| 14 | 42 |
| 15 | 76 |
| 16 | 100 |
| 17 | 138 |
| 18 | 168 |
| 19 | 204 |
| 20 | 194 |
| 21 | 272 |
| 22 | 276 |
| 23 | 450 |
| 24 | 588 |
| 25 | 808 |
| 26 | 992 |
| 27 | 1578 |
| 28 | 1612 |
| 29 | 1998 |
| 30 | 2166 |
| 31 | 2680 |
| 32 | 2732 |
| 33 | 3834 |
| 34 | 3910 |
| 35 | 5716 |
| 36 | 6818 |
| 37 | 9450 |
| 38 | 10524 |
| 39 | 15504 |
| 40 | 16640 |
| 41 | 22268 |
| 42 | 23754 |
| 43 | 30430 |
| 44 | 31498 |
| 45 | 40644 |
| 46 | 40294 |
| 47 | 52442 |
| 48 | 56344 |
| 49 | 72972 |
| 50 | 77184 |