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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 3 |
| 6 | 9 |
| 7 | 19 |
| 8 | 38 |
| 9 | 64 |
| 10 | 106 |
| 11 | 162 |
| 12 | 243 |
| 13 | 343 |
| 14 | 479 |
| 15 | 645 |
| 16 | 860 |
| 17 | 1110 |
| 18 | 1424 |
| 19 | 1790 |
| 20 | 2237 |
| 21 | 2743 |
| 22 | 3349 |
| 23 | 4035 |
| 24 | 4842 |
| 25 | 5734 |
| 26 | 6770 |
| 27 | 7920 |
| 28 | 9239 |
| 29 | 10679 |
| 30 | 12315 |
| 31 | 14105 |
| 32 | 16120 |
| 33 | 18290 |
| 34 | 20716 |
| 35 | 23342 |
| 36 | 26257 |
| 37 | 29377 |
| 38 | 32821 |
| 39 | 36517 |
| 40 | 40574 |
| 41 | 44880 |
| 42 | 49586 |
| 43 | 54602 |
| 44 | 60059 |
| 45 | 65827 |
| 46 | 72079 |
| 47 | 78705 |
| 48 | 85860 |
| 49 | 93376 |
| 50 | 101468 |