n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 6 |
4 | 92 |
5 | 832 |
6 | 4500 |
7 | 18229 |
8 | 58881 |
9 | 163509 |
10 | 401259 |
11 | 898420 |
12 | 1861146 |
13 | 3625546 |
14 | 6694982 |
15 | 11829267 |
16 | 20099815 |
17 | 33036079 |
18 | 52700901 |
19 | 81916834 |
20 | 124362664 |
21 | 184907220 |
22 | 269726216 |
23 | 386776561 |
24 | 545930397 |
25 | 759628777 |
26 | 1043027055 |
27 | 1414873104 |
28 | 1897655046 |
29 | 2518755934 |
30 | 3310591194 |
[0,0,6,92,832,4500,18229,58881,163509,401259, 898420,1861146,3625546,6694982,11829267,20099815, 33036079,52700901,81916834,124362664,184907220, 269726216,386776561,545930397,759628777, 1043027055,1414873104,1897655046,2518755934, 3310591194] |