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A262035 as a simple table

na(n)
01
12
215
3168
42520
547520
61081080
728828800
8882161280
930474662400
101173274502400
1149819040409600
122313026876160000
13116576554558464000
146338850154116480000
15369890550169620480000
1623056510960573009920000
171529010726859052236800000

[1,2,15,168,2520,47520,1081080,28828800,882161280,
 30474662400,1173274502400,49819040409600,
 2313026876160000,116576554558464000,
 6338850154116480000,369890550169620480000,
 23056510960573009920000,1529010726859052236800000]