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A088679 as a simple table

na(n)
00
11
22
36
448
52880
69953280
7115579079884800
815266884236590834264309760000
9262212473580148912869121218589990322256745385164800000000

[0,1,2,6,48,2880,9953280,115579079884800,
 15266884236590834264309760000,
 26221247358014891286912121858999032225674538516480\
 0000000]