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A176128
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a(n) = (n*n!)^2.
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1
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1, 16, 324, 9216, 360000, 18662400, 1244678400, 104044953600, 10666233446400, 1316818944000000, 192795461591040000, 33039724723568640000, 6553108179373916160000, 1489610673484191498240000
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OFFSET
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1,2
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COMMENTS
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Determinant of the 2 X 2 matrix M(1,1) = 1+(n!)^2, M(1,2)=M(2,1) = 1+n!*(n+1)!, M(2,2) = 1+((n+1)!)^2.
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LINKS
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FORMULA
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EXAMPLE
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n = 1, det(matrix([[2,3],[3,5]]) = 1 ;
n = 2, det(matrix([[5,13],[13,37]]) = 16 ;
n = 3, det(matrix([[37,145],[145,577]]) = 324 ;
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MAPLE
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seq((n*(n)!)^2, n=1..20) ;
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MATHEMATICA
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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