n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 171 |
4 | 2628 |
5 | 27495 |
6 | 259560 |
7 | 2372931 |
8 | 21467628 |
9 | 193542975 |
10 | 1742890320 |
11 | 15689024091 |
12 | 141210251028 |
13 | 1270919362455 |
14 | 11438355572280 |
15 | 102945444081651 |
16 | 926509728528828 |
17 | 8338589752141935 |
18 | 75047314355425440 |
19 | 675425848957273611 |
20 | 6078832699890797028 |
21 | 54709494476843177415 |
[0,0,171,2628,27495,259560,2372931,21467628, 193542975,1742890320,15689024091,141210251028, 1270919362455,11438355572280,102945444081651, 926509728528828,8338589752141935, 75047314355425440,675425848957273611, 6078832699890797028,54709494476843177415] |