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A090451
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Alternating row sums of triangle A090447.
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2
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1, 0, 1, -2, 21, -454, 25285, -3606504, 1328522713, -1270747453940, 3169192850406441, -20676520009454537480, 353872602524737587995341, -15925173912641846013871947522, 1888348697181821236021540428910349, -591053910458037676348857289166882470064
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OFFSET
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0,4
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LINKS
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FORMULA
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a(n)=sum(A090447(n, m)*(-1)^m, m=0..n), n>=0.
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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STATUS
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approved
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