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A055314 as a simple table

na(n)
21
33
40
512
64
70
860
960
105
110
12360
13720
14210
156
160
172520
188400
195250
20630
217
220
2320160
24100800
25109200
2630240
271736
288
290
30181440
311270080
322116800
331058400
34151704
354536
369
370
381814400
3916934400
4040219200
4131752000
428573040
43695520
4411430
4510
460

[1,3,0,12,4,0,60,60,5,0,360,720,210,6,0,2520,8400,
 5250,630,7,0,20160,100800,109200,30240,1736,8,0,
 181440,1270080,2116800,1058400,151704,4536,9,0,
 1814400,16934400,40219200,31752000,8573040,695520,
 11430,10,0]