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A080599 as a simple table

na(n)
01
11
23
312
466
5450
63690
735280
8385560
94740120
1064751400
11972972000
1215949256400
13283232149200
145416632421200
15110988861984000
162425817682288000
1756333385828720000
181385151050307024000
1935950878932544576000
20982196278209226080000
2128175806418228108640000

[1,1,3,12,66,450,3690,35280,385560,4740120,
 64751400,972972000,15949256400,283232149200,
 5416632421200,110988861984000,2425817682288000,
 56333385828720000,1385151050307024000,
 35950878932544576000,982196278209226080000,
 28175806418228108640000]