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A174826 as a simple table

na(n)
01
13
21260
3471517200
4550527639742080000
55190428913555819988454400000000
6850897011688550259860209488988778496000000000000
74613713285873452716084822982464795709127827429408768000000000000000000

[1,3,1260,471517200,550527639742080000,
 5190428913555819988454400000000,
 850897011688550259860209488988778496000000000000,
 46137132858734527160848229824647957091278274294087\
 68000000000000000000]