A013200 - OEIS

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A013200 as a simple table

n	a(n)
0	0
1	1
2	0
3	1
4	0
5	13
6	-48
7	677
8	-4480
9	54937
10	-471680
11	6248713
12	-65916928
13	988579109
14	-12514310144
15	212756765101
16	-3159842455552
17	60179200959793
18	-1026648500830208
19	21632158018229009
20	-416691460525064192

[0,1,0,1,0,13,-48,677,-4480,54937,-471680,6248713, -65916928,988579109,-12514310144,212756765101, -3159842455552,60179200959793,-1026648500830208, 21632158018229009,-416691460525064192]