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A060739 as a simple table

na(n)
01
11
2-2
3-36
47200
517640000
6-560105280000
7-239102222768640000
81408147589778024775680000
9116620600756651855983415296000000
10-137839975629646325813680872620851200000000
11-2352568589682795058651211199786427114330521600000000

[1,1,-2,-36,7200,17640000,-560105280000,
 -239102222768640000,1408147589778024775680000,
 116620600756651855983415296000000,
 -137839975629646325813680872620851200000000,
 -2352568589682795058651211199786427114330521600000\
 000]