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A162994
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The third left hand column of triangle A162990.
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2
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64, 1600, 57600, 2822400, 180633600, 14631321600, 1463132160000, 177038991360000, 25493614755840000, 4308420893736960000, 844450495172444160000, 190001361413799936000000, 48640348521932783616000000, 14057060722838574465024000000
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OFFSET
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3,1
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LINKS
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FORMULA
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a(n) = ((n+1)!/3)^2 for n = 3, 4, 5, ... .
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MATHEMATICA
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Array[((#+1)!/3)^2 &, 20, 3] (* Paolo Xausa, Apr 01 2024 *)
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CROSSREFS
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A002301(n+1) equals the square root of a(n).
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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