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A078994
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Determinant of n X n matrix M(n) where m(i,i)=i if i>j, m(i,j)=i-j if j>i, m(i,j)=j-i.
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0
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1, 1, 1, -2, -24, -138, -500, 1200, 56256, 904912, 11937696, 144543360, 1639736320, 16965191808, 141946949376, 376837224448, -23412830208000, -860170849536000, -22132932250013696, -501053473607319552, -10543220910009286656, -208356118642682839040
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OFFSET
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0,4
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LINKS
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PROG
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(PARI) a(n)=matdet(matrix(n, n, i, j, if(i-j, abs(i-j), i)))
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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