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A026592 T(2n,n-2), T given by A026584. 0
1, 3, 14, 65, 251, 1288, 4830, 25518, 95388, 510532, 1910821, 10309234, 38656462, 209766714, 787912030, 4294635438, 16155375825 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..18.

CROSSREFS

Sequence in context: A151240 A161131 A247978 * A034275 A240008 A151322

Adjacent sequences:  A026589 A026590 A026591 * A026593 A026594 A026595

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 6 18:59 EDT 2020. Contains 334832 sequences. (Running on oeis4.)