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A301737 as a simple table

na(n)
01
11
22
33
48
530
6144
7840
85760
945360
10403200
11570240
1243545600
13518918400
146706022400
1593405312000
16126804787200
1722230464256000
1853801459712000
196758061133824000
20128047474114560000
212554547108585472000
2253523844179886080000

[1,1,2,3,8,30,144,840,5760,45360,403200,570240,
 43545600,518918400,6706022400,93405312000,
 126804787200,22230464256000,53801459712000,
 6758061133824000,128047474114560000,
 2554547108585472000,53523844179886080000]