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A027063 T(n,2n-7), T given by A027052. 0
0, 2, 6, 20, 68, 228, 754, 2456, 7884, 24982, 78282, 242998, 748364, 2289584, 6966346, 21098366, 63651808, 191406976, 573998990, 1717334182, 5127933348, 15286303526, 45503354154, 135287179508, 401809091392, 1192336418386 (list; graph; refs; listen; history; internal format)
OFFSET

4,2

CROSSREFS

Sequence in context: A148475 A148476 A148477 * A027065 A006012 A127152

Adjacent sequences:  A027060 A027061 A027062 * A027064 A027065 A027066

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 18:09 EST 2012. Contains 205663 sequences.