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A026640 T(2n,n-2), T given by A026637. 0
1, 8, 38, 161, 662, 2672, 10676, 42398, 167756, 662252, 2610758, 10283861, 40490702, 159394424, 627456188, 2470223186, 9726696572, 38308366784, 150916209308, 594704861546, 2344206594332, 9243186573248, 36456892635848 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..24.

CROSSREFS

Sequence in context: A156934 A036684 A230905 * A122682 A225429 A123518

Adjacent sequences:  A026637 A026638 A026639 * A026641 A026642 A026643

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 3 13:49 EDT 2020. Contains 336198 sequences. (Running on oeis4.)