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A087074 as a simple table

na(n)
11
21
31
41
52
63
73
81
93
1012
1166
12378
131890
147560
1522680
1645360
1745360
181
193
2033
21426
225466
2365520
24720720
257207200
2664864800
27518918400
283632428800
2921794572800
30108972864000
31435891456000
321307674368000
332615348736000
342615348736000
351

[1,1,1,1,2,3,3,1,3,12,66,378,1890,7560,22680,
 45360,45360,1,3,33,426,5466,65520,720720,7207200,
 64864800,518918400,3632428800,21794572800,
 108972864000,435891456000,1307674368000,
 2615348736000,2615348736000,1]