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A062141 as a simple table

na(n)
01
118
2252
33360
445360
5635040
69313920
7143700480
82335132800
939956716800
10719220902400
1113599813427200
12269729632972800
135602076992512000
14121645100408832000
152757288942600192000
1665140951268929536000
171601701037083090944000
1840932359836567879680000

[1,18,252,3360,45360,635040,9313920,143700480,
 2335132800,39956716800,719220902400,
 13599813427200,269729632972800,5602076992512000,
 121645100408832000,2757288942600192000,
 65140951268929536000,1601701037083090944000,
 40932359836567879680000]