n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 6 |
3 | 54 |
4 | 240 |
5 | 810 |
6 | 2274 |
7 | 5304 |
8 | 10752 |
9 | 19992 |
10 | 34854 |
11 | 57774 |
12 | 91200 |
13 | 139338 |
14 | 206394 |
15 | 296832 |
16 | 417120 |
17 | 575556 |
18 | 779238 |
19 | 1037514 |
20 | 1359792 |
21 | 1760694 |
22 | 2251362 |
23 | 2845140 |
24 | 3554976 |
25 | 4404876 |
26 | 5416278 |
27 | 6605946 |
28 | 7996896 |
29 | 9621678 |
30 | 11500962 |
31 | 13667772 |
32 | 16143552 |
33 | 18973608 |
34 | 22190406 |
[0,0,6,54,240,810,2274,5304,10752,19992,34854, 57774,91200,139338,206394,296832,417120,575556, 779238,1037514,1359792,1760694,2251362,2845140, 3554976,4404876,5416278,6605946,7996896,9621678, 11500962,13667772,16143552,18973608,22190406] |