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A027122 a(n) = A027113(n, 2n-4). 0
1, 2, 7, 24, 77, 241, 738, 2227, 6650, 19711, 58114, 170682, 499911, 1461284, 4265437, 12438449, 36247956, 105589899, 307513742, 895514715, 2607925982, 7595726764, 22127052759, 64473303788, 187912261301, 547850119836 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..27.

CROSSREFS

Sequence in context: A272483 A129020 A024024 * A132788 A109682 A215694

Adjacent sequences:  A027119 A027120 A027121 * A027123 A027124 A027125

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 31 00:29 EDT 2020. Contains 334747 sequences. (Running on oeis4.)