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A025562 as a simple table

na(n)
01
11
22
33
48
510
624
784
8192
9432
102880
1115840
1234560
13224640
14483840
153628800
16116121600
17493516800
181045094400
199928396800
2020901888000
21219469824000
229656672256000
23111051730944000
24231760134144000
252897001676800000
2630128817438720000
27406739035422720000

[1,1,2,3,8,10,24,84,192,432,2880,15840,34560,
 224640,483840,3628800,116121600,493516800,
 1045094400,9928396800,20901888000,219469824000,
 9656672256000,111051730944000,231760134144000,
 2897001676800000,30128817438720000,
 406739035422720000]