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) |
|---|---|
| 4 | 1 |
| 5 | 0 |
| 6 | 2 |
| 7 | 2 |
| 8 | 5 |
| 9 | 5 |
| 10 | 11 |
| 11 | 13 |
| 12 | 24 |
| 13 | 29 |
| 14 | 48 |
| 15 | 61 |
| 16 | 96 |
| 17 | 122 |
| 18 | 182 |
| 19 | 236 |
| 20 | 339 |
| 21 | 440 |
| 22 | 617 |
| 23 | 800 |
| 24 | 1099 |
| 25 | 1422 |
| 26 | 1920 |
| 27 | 2479 |
| 28 | 3302 |
| 29 | 4244 |
| 30 | 5587 |
| 31 | 7157 |
| 32 | 9327 |
| 33 | 11894 |
| 34 | 15370 |
| 35 | 19516 |
| 36 | 25030 |
| 37 | 31648 |
| 38 | 40312 |
| 39 | 50763 |
| 40 | 64273 |
| 41 | 80604 |
| 42 | 101496 |
| 43 | 126796 |
| 44 | 158857 |
| 45 | 197708 |
| 46 | 246563 |
| 47 | 305758 |