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A374616
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a(n) = Sum_{k=0..n} (k/n)^4 * binomial(n,k)^5.
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2
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1, 3, 52, 815, 16806, 363132, 8471296, 205501599, 5164447210, 133153140098, 3506969720904, 93973493327012, 2554956958697248, 70323373958110080, 1956176944656294912, 54916687591986040223, 1554166975730511463794, 44297812047491490990366
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OFFSET
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1,2
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LINKS
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FORMULA
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a(n) = Sum_{k=0..n-1} binomial(n-1,k)^4 * binomial(n,k).
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PROG
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(PARI) a(n) = sum(k=0, n-1, binomial(n-1, k)^4*binomial(n, k));
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CROSSREFS
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KEYWORD
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nonn,new
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AUTHOR
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STATUS
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approved
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