n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 14 |
5 | 89 |
6 | 716 |
7 | 6967 |
8 | 79524 |
9 | 1041541 |
10 | 15393100 |
11 | 253377811 |
12 | 4596600004 |
13 | 91112351537 |
14 | 1959073928124 |
15 | 45414287553455 |
16 | 1129046241331316 |
17 | 29965290866974493 |
18 | 845605519848379436 |
19 | 25282324544244718411 |
20 | 798348403914242674980 |
21 | 26549922456617388029641 |
[1,1,3,14,89,716,6967,79524,1041541,15393100, 253377811,4596600004,91112351537,1959073928124, 45414287553455,1129046241331316,29965290866974493, 845605519848379436,25282324544244718411, 798348403914242674980,26549922456617388029641] |