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A027058 T(n,2n-2), T given by A027052. 0
1, 3, 9, 23, 59, 153, 401, 1063, 2847, 7693, 20947, 57413, 158265, 438467, 1220145, 3408759, 9556815, 26878861, 75815839, 214411865, 607827693, 1726911631, 4916352891, 14022750725, 40066540277, 114666463855, 328662240617 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..28.

CROSSREFS

Sequence in context: A045650 A191342 A077847 * A146818 A180488 A318860

Adjacent sequences:  A027055 A027056 A027057 * A027059 A027060 A027061

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 13 13:15 EST 2018. Contains 317149 sequences. (Running on oeis4.)