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A027110 a(n) = Sum{T(n,k)*T(n,k+1)}, 0<=k<=2n-1, T given by A027082. 0
2, 11, 80, 591, 4492, 34859, 274834, 2194175, 17697088, 143951359, 1179361946, 9721994363, 80573155210, 670916858663, 5609929650932, 47082821529795, 396479220532944 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..17.

CROSSREFS

Sequence in context: A163203 A142722 A099661 * A118969 A181068 A056846

Adjacent sequences:  A027107 A027108 A027109 * A027111 A027112 A027113

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 20 10:33 EST 2018. Contains 299385 sequences. (Running on oeis4.)