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A027111 a(n) = Sum{T(n,k)*T(n,k+2)}, 0<=k<=2n-2, T given by A027082. 0
6, 52, 404, 3237, 26086, 211730, 1730114, 14223429, 117563545, 976408938, 8144436109, 68197885773, 573056586975, 4830577196508, 40836850965484, 346138265331977 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..17.

CROSSREFS

Sequence in context: A202925 A287082 A007974 * A083301 A005948 A084773

Adjacent sequences:  A027108 A027109 A027110 * A027112 A027113 A027114

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 19 16:56 EST 2018. Contains 299356 sequences. (Running on oeis4.)