A027201 - OEIS

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A027201

a(n) = self-convolution of row n of array T given by A026714.

1, 2, 11, 52, 269, 1380, 7333, 37772, 203145, 1044234, 5643127, 28956878, 156801451, 803721390, 4356085375, 22313412784, 120988175101, 619498949770, 3359774186871, 17198982565682, 93286822081343, 477471877247444, 2589948726805741, 13254933617607980

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

MAPLE

A027201 := proc(n)

add( A026714(n, k)*A026714(n, n-k), k=0..n) ;

end proc:

seq(A027201(n), n=0..30) ; # R. J. Mathar, Oct 21 2019

CROSSREFS

Sequence in context: A181290 A026996 A110308 * A026933 A346925 A052171

Adjacent sequences: A027198 A027199 A027200 * A027202 A027203 A027204

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

NAME corrected by Sean A. Irvine, Oct 21 2019

More terms from Ray Chandler, Oct 22 2019

STATUS

approved