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 | 2 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 9 |
| 7 | 18 |
| 8 | 30 |
| 9 | 56 |
| 10 | 98 |
| 11 | 180 |
| 12 | 311 |
| 13 | 546 |
| 14 | 915 |
| 15 | 1520 |
| 16 | 2440 |
| 17 | 3855 |
| 18 | 5916 |
| 19 | 8935 |
| 20 | 13178 |
| 21 | 19138 |
| 22 | 27264 |
| 23 | 38303 |
| 24 | 52950 |
| 25 | 72311 |
| 26 | 97419 |
| 27 | 129839 |
| 28 | 171066 |
| 29 | 223260 |
| 30 | 288498 |
| 31 | 369708 |
| 32 | 469708 |
| 33 | 592363 |
| 34 | 741433 |
| 35 | 921933 |
| 36 | 1138761 |
| 37 | 1398343 |
| 38 | 1706956 |
| 39 | 2072696 |
| 40 | 2503513 |
| 41 | 3009482 |
| 42 | 3600515 |
| 43 | 4289032 |
| 44 | 5087253 |
| 45 | 6010305 |
| 46 | 7073122 |
| 47 | 8293962 |