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A046979 as a simple table

na(n)
01
11
21
33
41
530
690
7630
81
922680
10113400
111247400
121
1397297200
14681080400
1510216206000
161
171389404016000
1812504636144000
19237588086736000
201
2149893498214560000
22548828480360160000
2312623055048283680000
241
253786916514485104000000
2649229914688306352000000

[1,1,1,3,1,30,90,630,1,22680,113400,1247400,1,
 97297200,681080400,10216206000,1,1389404016000,
 12504636144000,237588086736000,1,
 49893498214560000,548828480360160000,
 12623055048283680000,1,3786916514485104000000,
 49229914688306352000000]