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A065953 as a simple table

na(n)
01
11
21
31
41
52
66
78
840
9720
10560
114480
12362880
131209600
1413305600
15479001600
16188697600
172641766400
181307674368000
19774918144000
201197600768000
2144771844096000
223119105138688000
2373724303278080000
244644631106519040000
25374666909259202560000
268617338912961658880000

[1,1,1,1,1,2,6,8,40,720,560,4480,362880,1209600,
 13305600,479001600,188697600,2641766400,
 1307674368000,774918144000,1197600768000,
 44771844096000,3119105138688000,73724303278080000,
 4644631106519040000,374666909259202560000,
 8617338912961658880000]