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A365845
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Expansion of (1/x) * Series_Reversion( x*(1-x)^5/(1+x)^3 ).
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3
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1, 8, 97, 1400, 22243, 375584, 6614508, 120136984, 2234022775, 42322629960, 813939319697, 15849232257824, 311858145053076, 6191083938051840, 123852349440862504, 2494251111318893400, 50526944132627936127, 1028872756710478785560
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = (1/(n+1)) * Sum_{k=0..n} binomial(5*n+k+4,k) * binomial(3*(n+1),n-k).
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PROG
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(PARI) a(n) = sum(k=0, n, binomial(5*n+k+4, k)*binomial(3*(n+1), n-k))/(n+1);
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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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