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A302401 Total domination number of the n X n king graph. 5
2, 2, 4, 5, 8, 9, 12, 15, 18, 21, 24, 29, 32, 38, 43, 48, 53, 60, 66, 72, 79 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

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

Eric Weisstein's World of Mathematics, King Graph

Eric Weisstein's World of Mathematics, Total Domination Number

Eric W. Weisstein, Example minimum total domination configurations for n X n king graphs

FORMULA

a(n) ~ n^2/7. - Andrew Howroyd, Apr 22 2018

CROSSREFS

Main diagonal of A303378.

Cf. A303156.

Sequence in context: A166515 A339560 A308952 * A326443 A326522 A326626

Adjacent sequences: A302398 A302399 A302400 * A302402 A302403 A302404

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, Apr 07 2018

EXTENSIONS

a(17)-a(18) from Andrew Howroyd, Apr 22 2018

a(19)-a(20) from Eric W. Weisstein, Sep 09 2021

a(21) from Eric W. Weisstein, Sep 12 2021

a(22) from Eric W. Weisstein, Sep 15 2021

STATUS

approved

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Last modified December 9 23:05 EST 2022. Contains 358710 sequences. (Running on oeis4.)