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A159240 as a simple table

na(n)
01
110
2-62
3-3860
4-8468
52416600
631025080
7-2038684400
8-55569284720
92086442135200
10101884438473760
11-2361191874286400
12-205169988103104320
132538457122581718400
14457472566170954881920
15-1182495092305788512000
16-1123483286718478248185600

[1,10,-62,-3860,-8468,2416600,31025080,
 -2038684400,-55569284720,2086442135200,
 101884438473760,-2361191874286400,
 -205169988103104320,2538457122581718400,
 457472566170954881920,-1182495092305788512000,
 -1123483286718478248185600]