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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 2 |
| 12 | 3 |
| 13 | 3 |
| 14 | 4 |
| 15 | 6 |
| 16 | 8 |
| 17 | 12 |
| 18 | 18 |
| 19 | 30 |
| 20 | 46 |
| 21 | 70 |
| 22 | 113 |
| 23 | 186 |
| 24 | 314 |
| 25 | 531 |
| 26 | 894 |
| 27 | 1561 |
| 28 | 2705 |
| 29 | 4817 |
| 30 | 8502 |
| 31 | 15030 |
| 32 | 26502 |
| 33 | 47200 |
| 34 | 84698 |
| 35 | 151809 |
| 36 | 273961 |
| 37 | 496807 |
| 38 | 900596 |
| 39 | 1643185 |
| 40 | 2999067 |
| 41 | 5498916 |
| 42 | 10110030 |
| 43 | 18596096 |
| 44 | 34300223 |
| 45 | 63585519 |
| 46 | 118208807 |
| 47 | 219235308 |
| 48 | 405259618 |
| 49 | 752027569 |
| 50 | 1400505025 |