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A062752
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Row sums of unsigned N(4) staircase array A062751.
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1
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1, 15, 497, 22031, 1124849, 62379535, 3651676657, 222085764623, 13895337519601, 888654458770959, 57831897893972465, 3817410543738148367, 254970980461934291441, 17200148833928765494799
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..13.
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FORMULA
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a(n)=N(4; n, -1) with the row polynomials N(4; n, x) defined in A062751.
a(n)=sum(((-1)^(n-j))*2^(3*j+1)*A002293(j), j=1..n)+(-1)^n, with A002293(j)= A062993(j+2, 2)= binomial(4*j, j)/(3*j+1).
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CROSSREFS
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Sequence in context: A151816 A013431 A013432 * A218226 A208099 A219057
Adjacent sequences: A062749 A062750 A062751 * A062753 A062754 A062755
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KEYWORD
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nonn,easy
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AUTHOR
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Wolfdieter Lang, Jul 12 2001
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STATUS
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approved
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