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A265950 as a simple table

na(n)
01
11
22
38
430
5156
6900
76192
847904
9422928
104138848
1144864640
12531227520
136836927040
1494891046400
151413494219520
1622481104677120
17380261238681600
186814832064422400
19128991143627965440
202571187988206540800
2153834676521793638400
221181214133296983654400

[1,1,2,8,30,156,900,6192,47904,422928,4138848,
 44864640,531227520,6836927040,94891046400,
 1413494219520,22481104677120,380261238681600,
 6814832064422400,128991143627965440,
 2571187988206540800,53834676521793638400,
 1181214133296983654400]