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 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 1 |
| 5 | 8 |
| 6 | 20 |
| 7 | 1 |
| 8 | 14 |
| 9 | 62 |
| 10 | 276 |
| 11 | 1 |
| 12 | 22 |
| 13 | 132 |
| 14 | 1006 |
| 15 | 4324 |
| 16 | 1 |
| 17 | 32 |
| 18 | 336 |
| 19 | 3610 |
| 20 | 26996 |
| 21 | 229348 |
| 22 | 1 |
| 23 | 44 |
| 24 | 688 |
| 25 | 12010 |
| 26 | 109722 |
| 27 | 1620034 |
| 28 | 13535280 |
| 29 | 1 |
| 30 | 58 |
| 31 | 1578 |
| 32 | 38984 |
| 33 | 602804 |
| 34 | 12071462 |
| 35 | 175905310 |
| 36 | 3023313284 |
| 37 | 1 |
| 38 | 74 |
| 39 | 3190 |
| 40 | 122188 |
| 41 | 2434670 |
| 42 | 82550864 |
| 43 | 1449655468 |
| 44 | 43551685370 |
| 45 | 745416341496 |