1,2

Table of n, a(n) for n=1..30.

Eric Weisstein's World of Mathematics, Grid Graph

Eric Weisstein's World of Mathematics, Total Dominating Set

Main diagonal of A303293.

Cf. A302488.

Sequence in context: A137393 A122749 A189741 * A285595 A255566 A302461

Adjacent sequences: A303139 A303140 A303141 * A303143 A303144 A303145

nonn,more

Eric W. Weisstein, Apr 19 2018

a(6)-a(30) from Andrew Howroyd, Apr 22 2018

approved