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A152086 a(n) = Sum_{k=1..n-1} k*A110971(n,k). 2
1, 3, 8, 21, 52, 126, 296, 685, 1556, 3498, 7768 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..12.

M. A. Michels and U. Knauer, The congruence classes of paths and cycles, Discr. Math., 309 (2009), 5352-5359. See p. 5356.

CROSSREFS

Cf. A110971, A102699.

Sequence in context: A259714 A096770 A007835 * A014396 A170881 A039671

Adjacent sequences: A152083 A152084 A152085 * A152087 A152088 A152089

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 20 2009

STATUS

approved

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Last modified December 8 06:47 EST 2022. Contains 358673 sequences. (Running on oeis4.)