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A296591 as a simple table

na(n)
01
12
2288
312441600
4421382062080000
523120161750363668480000000
63683853104727992382799761899520000000000
72777528195026874073410445622205453260145295360000000000000

[1,2,288,12441600,421382062080000,
 23120161750363668480000000,
 3683853104727992382799761899520000000000,
 27775281950268740734104456222054532601452953600000\
 00000000]