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A054133 T(2n-1,n). 0
2, 7, 39, 236, 1479, 9418, 60492, 390720, 2534115, 16489802, 107594725, 703681448, 4611414244, 30273029080, 199045400424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

CROSSREFS

Sequence in context: A014058 A119602 A121752 * A266310 A032118 A125660

Adjacent sequences:  A054130 A054131 A054132 * A054134 A054135 A054136

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 17 11:02 EST 2019. Contains 329226 sequences. (Running on oeis4.)