n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 130 |
5 | 1980 |
6 | 38828 |
7 | 931308 |
8 | 26409696 |
9 | 864340080 |
10 | 32064955512 |
11 | 1329619343712 |
12 | 60942831972240 |
13 | 3059502805907184 |
14 | 166958986644198240 |
15 | 9840268295795334528 |
16 | 622945100439880885920 |
17 | 42156597800781887551296 |
18 | 3036974549700781049394240 |
19 | 232047627350715685524211392 |
[1,2,12,130,1980,38828,931308,26409696,864340080, 32064955512,1329619343712,60942831972240, 3059502805907184,166958986644198240, 9840268295795334528,622945100439880885920, 42156597800781887551296,3036974549700781049394240, 232047627350715685524211392] |