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A007672 as a simple table

na(n)
11
21
32
46
524
61
7720
83
980
1012
113628800
122
13479001600
14360
158
1645
1720922789888000
1840
196402373705728000
206
21240
221814400
231124000727777607680000
241
25145152
26239500800
2713440
28180
29304888344611713860501504000000

[1,1,2,6,24,1,720,3,80,12,3628800,2,479001600,360,
 8,45,20922789888000,40,6402373705728000,6,240,
 1814400,1124000727777607680000,1,145152,239500800,
 13440,180,304888344611713860501504000000]