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 | 0 |
| 3 | 19 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1513 |
| 7 | 166 |
| 8 | 1 |
| 9 | 0 |
| 10 | 315523 |
| 11 | 52715 |
| 12 | 1361 |
| 13 | 1 |
| 14 | 0 |
| 15 | 136085041 |
| 16 | 30543236 |
| 17 | 1528806 |
| 18 | 10916 |
| 19 | 1 |
| 20 | 0 |
| 21 | 105261234643 |
| 22 | 29664031413 |
| 23 | 2257312622 |
| 24 | 42421946 |
| 25 | 87375 |
| 26 | 1 |
| 27 | 0 |
| 28 | 132705221399353 |
| 29 | 45011574747714 |
| 30 | 4637635381695 |
| 31 | 153778143100 |
| 32 | 1156669095 |
| 33 | 699042 |
| 34 | 1 |
| 35 | 0 |