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) |
|---|---|
| 2 | 0 |
| 3 | 1 |
| 4 | 8 |
| 5 | 20 |
| 6 | 60 |
| 7 | 112 |
| 8 | 208 |
| 9 | 216 |
| 10 | 480 |
| 11 | 660 |
| 12 | 864 |
| 13 | 1196 |
| 14 | 1568 |
| 15 | 2250 |
| 16 | 2464 |
| 17 | 2992 |
| 18 | 3924 |
| 19 | 4332 |
| 20 | 5160 |
| 21 | 8148 |
| 22 | 7040 |
| 23 | 8096 |
| 24 | 10560 |
| 25 | 10600 |
| 26 | 12064 |
| 27 | 15552 |
| 28 | 15288 |
| 29 | 17052 |
| 30 | 25320 |
| 31 | 21080 |
| 32 | 23360 |
| 33 | 30360 |
| 34 | 28288 |
| 35 | 30940 |
| 36 | 36288 |
| 37 | 36852 |
| 38 | 40128 |
| 39 | 50076 |
| 40 | 47120 |
| 41 | 50840 |
| 42 | 67620 |