n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 5 |
5 | 16 |
6 | 55 |
7 | 197 |
8 | 705 |
9 | 2563 |
10 | 9381 |
11 | 34563 |
12 | 128029 |
13 | 476347 |
14 | 1779107 |
15 | 6666752 |
16 | 25054585 |
17 | 94401460 |
18 | 356510371 |
19 | 1349182629 |
20 | 5115555725 |
21 | 19429832443 |
22 | 73916249353 |
23 | 281613780638 |
24 | 1074400168957 |
25 | 4104279704526 |
26 | 15697542046005 |
27 | 60106182177517 |
28 | 230394256650275 |
29 | 884024296630081 |
30 | 3395269379129779 |
[0,0,1,1,5,16,55,197,705,2563,9381,34563,128029, 476347,1779107,6666752,25054585,94401460, 356510371,1349182629,5115555725,19429832443, 73916249353,281613780638,1074400168957, 4104279704526,15697542046005,60106182177517, 230394256650275,884024296630081,3395269379129779] |