A024267 - OEIS

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A024267 as a simple table

n	a(n)
0	0
1	1
2	6
3	11
4	-3444
5	-332459
6	-29987694
7	-2859070369
8	-273662362344
9	-19246624581719
10	2275560110751006
11	2059358886894880691
12	971880309496843009956
13	421133305062417496939261
14	183502876193773880905851306

[0,1,6,11,-3444,-332459,-29987694,-2859070369, -273662362344,-19246624581719,2275560110751006, 2059358886894880691,971880309496843009956, 421133305062417496939261, 183502876193773880905851306]