A128131 - OEIS

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A128131 as a simple table

n	a(n)
0	1
1	-4
2	0
3	0
4	-16384
5	1048576
6	0
7	0
8	17592186044416
9	-18014398509481984
10	0
11	0
12	-1237940039285380274899124224
13	20282409603651670423947251286016
14	0
15	0
16	5708990770823839524233143877797980545530986496

[1,-4,0,0,-16384,1048576,0,0,17592186044416, -18014398509481984,0,0, -1237940039285380274899124224, 20282409603651670423947251286016,0,0, 5708990770823839524233143877797980545530986496]