OFFSET
1,2
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..435 (first 29 antidiagonals)
Alexandre Talon, Intensive use of computing resources for dominations in grids and other combinatorial problems, arXiv:2002.11615 [cs.DM], 2020. See Sec. 2.3.2.
Eric Weisstein's World of Mathematics, Grid Graph
Eric Weisstein's World of Mathematics, Total Domination Number
EXAMPLE
Table begins:
=======================================================
m\n| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
---+---------------------------------------------------
1 | 1 2 2 2 3 4 4 4 5 6 6 6 7 8 8 8 ...
2 | 2 2 2 4 4 4 6 6 6 8 8 8 10 10 10 12 ...
3 | 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...
4 | 2 4 4 6 8 8 10 12 12 14 14 16 18 18 20 20 ...
5 | 3 4 5 8 9 10 12 14 15 16 18 20 21 22 24 26 ...
6 | 4 4 6 8 10 12 14 16 18 20 20 24 24 26 28 30 ...
7 | 4 6 7 10 12 14 15 18 20 22 24 26 27 30 32 34 ...
8 | 4 6 8 12 14 16 18 20 22 24 28 30 32 34 36 38 ...
9 | 5 6 9 12 15 18 20 22 25 28 30 32 35 38 40 42 ...
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Andrew Howroyd, Apr 20 2018
STATUS
approved