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A026911 T(2n,n-2), T given by A026907. 0
67, 348, 1495, 6108, 24501, 97456, 385900, 1524066, 6009720, 23675882, 93226503, 367005692, 1444728537, 5687662392, 22395051912, 88199397642, 347448657492, 1369107075762, 5396498311992, 21277355051610, 83918011194996 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..22.

CROSSREFS

Sequence in context: A033242 A013533 A012865 * A142371 A142609 A262344

Adjacent sequences:  A026908 A026909 A026910 * A026912 A026913 A026914

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified March 4 01:48 EST 2021. Contains 341773 sequences. (Running on oeis4.)