n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 10 |
5 | 34 |
6 | 112 |
7 | 382 |
8 | 1352 |
9 | 4884 |
10 | 17856 |
11 | 66022 |
12 | 246764 |
13 | 930878 |
14 | 3538788 |
15 | 13542716 |
16 | 52133416 |
17 | 201746212 |
18 | 784378792 |
19 | 3062431132 |
20 | 12001867312 |
21 | 47197716460 |
22 | 186187480816 |
23 | 736582735738 |
24 | 2921679555340 |
25 | 11617001425938 |
26 | 46294191726972 |
27 | 184866924629832 |
[1,1,1,3,10,34,112,382,1352,4884,17856,66022, 246764,930878,3538788,13542716,52133416,201746212, 784378792,3062431132,12001867312,47197716460, 186187480816,736582735738,2921679555340, 11617001425938,46294191726972,184866924629832] |