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A026131 a(n) = T(2n,n-2), where T is the array in A026120. 1
1, 3, 16, 84, 458, 2541, 14286, 81103, 463913, 2669576, 15437366, 89633392, 522223740, 3051529665, 17876415654, 104955553899, 617415739622, 3638327064022, 21473223755896, 126910074421985, 751000070996514, 4449166010804565, 26385683227918794, 156628589801790627 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Cf. A026120, A026128, A026132.

Sequence in context: A030983 A069429 A275402 * A026160 A025187 A151328

Adjacent sequences:  A026128 A026129 A026130 * A026132 A026133 A026134

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms and title corrected by Sean A. Irvine, Sep 17 2019

STATUS

approved

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Last modified January 27 01:45 EST 2021. Contains 340443 sequences. (Running on oeis4.)