n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 378 |
5 | 90027 |
6 | 2931831 |
7 | 33720354 |
8 | 224710119 |
9 | 1068797961 |
10 | 4037126346 |
11 | 12886585236 |
12 | 36161763120 |
13 | 91629683271 |
14 | 213681907449 |
15 | 465104644470 |
16 | 955060713621 |
17 | 1865654931141 |
18 | 3490074060228 |
19 | 6286011239592 |
20 | 10948910130774 |
21 | 18510503248611 |
22 | 30469179410667 |
[0,0,0,378,90027,2931831,33720354,224710119, 1068797961,4037126346,12886585236,36161763120, 91629683271,213681907449,465104644470, 955060713621,1865654931141,3490074060228, 6286011239592,10948910130774,18510503248611, 30469179410667] |