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) |
|---|---|
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 7 |
| 8 | 24 |
| 9 | 63 |
| 10 | 110 |
| 11 | 242 |
| 12 | 360 |
| 13 | 650 |
| 14 | 812 |
| 15 | 1425 |
| 16 | 1680 |
| 17 | 2737 |
| 18 | 2718 |
| 19 | 4788 |
| 20 | 5200 |
| 21 | 7812 |
| 22 | 8272 |
| 23 | 12075 |
| 24 | 11328 |
| 25 | 17875 |
| 26 | 18486 |
| 27 | 25542 |
| 28 | 26264 |
| 29 | 35438 |
| 30 | 29070 |
| 31 | 47957 |
| 32 | 48800 |
| 33 | 63525 |
| 34 | 64362 |
| 35 | 82600 |
| 36 | 77940 |
| 37 | 105672 |
| 38 | 106552 |
| 39 | 133263 |
| 40 | 134200 |
| 41 | 165927 |
| 42 | 149478 |
| 43 | 204250 |
| 44 | 205128 |
| 45 | 248850 |
| 46 | 249596 |
| 47 | 300377 |