n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 5 |
4 | 19 |
5 | 68 |
6 | 243 |
7 | 880 |
8 | 3233 |
9 | 12021 |
10 | 45119 |
11 | 170595 |
12 | 648787 |
13 | 2479057 |
14 | 9509627 |
15 | 36598497 |
16 | 141246127 |
17 | 546433952 |
18 | 2118424887 |
19 | 8227983472 |
20 | 32010173957 |
21 | 124715628852 |
22 | 486550020967 |
23 | 1900433894942 |
24 | 7431033132717 |
25 | 29085434212042 |
[0,0,1,5,19,68,243,880,3233,12021,45119,170595, 648787,2479057,9509627,36598497,141246127, 546433952,2118424887,8227983472,32010173957, 124715628852,486550020967,1900433894942, 7431033132717,29085434212042] |