The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 3 | 36 |
| 4 | 120 |
| 5 | 310 |
| 6 | 660 |
| 7 | 1218 |
| 8 | 2032 |
| 9 | 3150 |
| 10 | 4620 |
| 11 | 6490 |
| 12 | 8808 |
| 13 | 11622 |
| 14 | 14980 |
| 15 | 18930 |
| 16 | 23520 |
| 17 | 28798 |
| 18 | 34812 |
| 19 | 41610 |
| 20 | 49240 |
| 21 | 57750 |
| 22 | 67188 |
| 23 | 77602 |
| 24 | 89040 |
| 25 | 101550 |
| 26 | 115180 |
| 27 | 129978 |
| 28 | 145992 |
| 29 | 163270 |
| 30 | 181860 |
| 31 | 201810 |
| 32 | 223168 |
| 33 | 245982 |
| 34 | 270300 |
| 35 | 296170 |
| 36 | 323640 |
| 37 | 352758 |
| 38 | 383572 |
| 39 | 416130 |
| 40 | 450480 |
[36,120,310,660,1218,2032,3150,4620,6490,8808, 11622,14980,18930,23520,28798,34812,41610,49240, 57750,67188,77602,89040,101550,115180,129978, 145992,163270,181860,201810,223168,245982,270300, 296170,323640,352758,383572,416130,450480] |