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 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 0 |
| 8 | 1 |
| 9 | 5 |
| 10 | 7 |
| 11 | 9 |
| 12 | 12 |
| 13 | 16 |
| 14 | 21 |
| 15 | 28 |
| 16 | 165 |
| 17 | 241 |
| 18 | 354 |
| 19 | 518 |
| 20 | 760 |
| 21 | 1113 |
| 22 | 1632 |
| 23 | 2391 |
| 24 | 3505 |
| 25 | 14823 |
| 26 | 22741 |
| 27 | 34888 |
| 28 | 53524 |
| 29 | 82114 |
| 30 | 125976 |
| 31 | 193267 |
| 32 | 296502 |
| 33 | 454881 |
| 34 | 697859 |
| 35 | 1070626 |
| 36 | 1642509 |
| 37 | 2519868 |
| 38 | 3865875 |
| 39 | 5930862 |
| 40 | 9098878 |
| 41 | 13959114 |
| 42 | 21415483 |
| 43 | 32854729 |
| 44 | 50404337 |
| 45 | 77328204 |