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A117257
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Column 0 of triangle A117256.
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1
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1, 1, -10, 750, -328125, 779296875, -9741210937500, 630569458007812500, -209368765354156494140625, 354400253854691982269287109375, -3045627181563759222626686096191406250, 132489108572997338342247530817985534667968750
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) = [prod_{j=0..n-1} (1-5*j)]/n! * 5^(n*(n-1)/2).
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PROG
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(PARI) {a(n)=local(m=1, p=5, q=5, r=1); prod(j=0, n-1, m*r-p*j)/n!*q^(n*(n-1)/2)}
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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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