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A026652 a(n) = T(2n-1,n-1), T given by A026648. 0
1, 4, 14, 57, 222, 928, 3764, 15971, 66190, 283464, 1190628, 5131002, 21749532, 94153056, 401757672, 1745117091, 7484144598, 32595240952, 140342565620, 612526487822, 2645723309284, 11567425911936, 50095161350616, 219340900447118 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Sequence in context: A309514 A151884 A002735 * A269134 A186828 A151489

Adjacent sequences:  A026649 A026650 A026651 * A026653 A026654 A026655

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 23 16:46 EDT 2019. Contains 328373 sequences. (Running on oeis4.)