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A152554
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Largest term in row n of triangle A152550.
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1
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1, 1, 3, 16, 180, 2640, 52934, 1307556, 39067428, 1369499060, 54995284784, 2507211396061, 127388480252917, 7144814127814222, 439553511977812220, 29347225935730588372, 2116793087420823777580, 164035715631344596393196
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OFFSET
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0,3
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COMMENTS
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Compare to row sums of triangle A152550: (2n+1)^(n-1).
Triangle A152550 lists coefficients in a q-analog of the function [LambertW(-2x)/(-2x)]^(1/2).
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LINKS
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PROG
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(PARI) {a(n)=local(e_q=1+sum(j=1, n, x^j/prod(i=1, j, (q^i-1)/(q-1))), LW2_q=sqrt(serreverse(x/(e_q+x*O(x^n))^2)/x)); vecsort(Vec(polcoeff(LW2_q+x*O(x^n), n, x)*prod(i=1, n, (q^i-1)/(q-1))))[n*(n-1)/2+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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