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A062752 Row sums of unsigned N(4) staircase array A062751. 1
1, 15, 497, 22031, 1124849, 62379535, 3651676657, 222085764623, 13895337519601, 888654458770959, 57831897893972465, 3817410543738148367, 254970980461934291441, 17200148833928765494799 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

FORMULA

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).

CROSSREFS

Sequence in context: A013432 A285765 A287070 * A218226 A208099 A219057

Adjacent sequences:  A062749 A062750 A062751 * A062753 A062754 A062755

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang, Jul 12 2001

STATUS

approved

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Last modified November 13 07:13 EST 2019. Contains 329085 sequences. (Running on oeis4.)