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A279046 as a simple table

na(n)
01
10
21
34
4108
512672
69158400
746133452800
81860226228224000
9675033837113180160000
102449564623049780415692800000
1197778774486746890792389836800000000
1246836189690981206780971946461888512000000000
13291649927271171583734813938085106400257638400000000000

[1,0,1,4,108,12672,9158400,46133452800,
 1860226228224000,675033837113180160000,
 2449564623049780415692800000,
 97778774486746890792389836800000000,
 46836189690981206780971946461888512000000000,
 29164992727117158373481393808510640025763840000000\
 0000]