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 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 5 |
| 5 | 1 |
| 6 | 24 |
| 7 | 1 |
| 8 | 55 |
| 9 | 19 |
| 10 | 128 |
| 11 | 1 |
| 12 | 1627 |
| 13 | 1 |
| 14 | 741 |
| 15 | 449 |
| 16 | 5271 |
| 17 | 1 |
| 18 | 45315 |
| 19 | 1 |
| 20 | 83343 |
| 21 | 3320 |
| 22 | 29966 |
| 23 | 1 |
| 24 | 5105721 |
| 25 | 571 |
| 26 | 200389 |
| 27 | 26425 |
| 28 | 5469758 |
| 29 | 1 |
| 30 | 154004510 |
| 31 | 1 |
| 32 | 47350055 |
| 33 | 226019 |
| 34 | 9262156 |
| 35 | 51885 |
| 36 | 15140335649 |
| 37 | 1 |
| 38 | 63346597 |
| 39 | 2044894 |
| 40 | 14700095925 |
| 41 | 1 |
| 42 | 185493291000 |
| 43 | 1 |
| 44 | 35539518745 |
| 45 | 478164162 |