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 | 0 |
| 3 | 0 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 9 |
| 8 | 15 |
| 9 | 23 |
| 10 | 36 |
| 11 | 53 |
| 12 | 85 |
| 13 | 124 |
| 14 | 202 |
| 15 | 289 |
| 16 | 425 |
| 17 | 603 |
| 18 | 864 |
| 19 | 1209 |
| 20 | 1699 |
| 21 | 2397 |
| 22 | 3386 |
| 23 | 4665 |
| 24 | 6440 |
| 25 | 8801 |
| 26 | 12101 |
| 27 | 16338 |
| 28 | 22078 |
| 29 | 29565 |
| 30 | 39557 |
| 31 | 52615 |
| 32 | 69823 |
| 33 | 92338 |
| 34 | 121622 |
| 35 | 159435 |
| 36 | 208513 |
| 37 | 271775 |
| 38 | 353436 |
| 39 | 457759 |
| 40 | 591191 |
| 41 | 760763 |
| 42 | 976412 |
| 43 | 1250011 |
| 44 | 1596723 |
| 45 | 2034474 |
| 46 | 2585159 |
| 47 | 3277192 |
| 48 | 4145341 |
| 49 | 5232888 |
| 50 | 6591553 |