A156936 - OEIS

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A156936 as a simple table

n	a(n)
2	-6
3	-242
4	-7382
5	-130472
6	-1594852
7	-15166900
8	-119173924
9	-788897224
10	-4270968154
11	-15821839894
12	13226522262
13	1056215331024
14	14319250065624
15	147391347765784
16	1340374086462424

[-6,-242,-7382,-130472,-1594852,-15166900, -119173924,-788897224,-4270968154,-15821839894, 13226522262,1056215331024,14319250065624, 147391347765784,1340374086462424]