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A213148 as a simple table

na(n)
01
1-5
2-20
3370
46880
5-84080
6-4764320
713835920
85296238080
957709630720
10-8215749893120
11-267412364065280
1215638020342497280
131127961849051627520
14-29166891598121553920
15-5249813654826672404480

[1,-5,-20,370,6880,-84080,-4764320,13835920,
 5296238080,57709630720,-8215749893120,
 -267412364065280,15638020342497280,
 1127961849051627520,-29166891598121553920,
 -5249813654826672404480]