A015026 - OEIS

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A015026 as a simple table

n	a(n)
1	1
2	-10
3	-1110
4	1354200
5	18174718200
6	-2683133647866000
7	-4357223907912681246000
8	77834136400782124140797040000
9	15294068523753116384387488625702640000
10	-33057395763506647102922925284376653918412000000

[1,-10,-1110,1354200,18174718200, -2683133647866000,-4357223907912681246000, 77834136400782124140797040000, 15294068523753116384387488625702640000, -33057395763506647102922925284376653918412000000]

[1,-10,-1110,1354200,18174718200,
 -2683133647866000,-4357223907912681246000,
 77834136400782124140797040000,
 15294068523753116384387488625702640000,
 -33057395763506647102922925284376653918412000000]