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Triangle read by rows: (3,1) broadcast domination numbers.
1

%I #7 Apr 23 2015 12:17:32

%S 1,1,1,1,1,1,1,2,2,3,1,2,2,3,4,2,2,2,4,4,4,2,2,3,4,4,6,6,2,2,3,4,5,6,

%T 7,8,2,3,3,5,6,6,7,8,9,2,3,4,5,6,7,8,9,10,10

%N Triangle read by rows: (3,1) broadcast domination numbers.

%H D. Blessing, E. Insko, K. Johnson, C. Mauretour, <a href="http://arxiv.org/abs/1401.2499">On (t,r) Broadcast Domination Numbers of Grids</a>, arXiv preprint arXiv:1401.2499, 2014

%e Triangle begins:

%e 1,

%e 1, 1,

%e 1, 1, 1,

%e 1, 2, 2, 3,

%e 1, 2, 2, 3, 4,

%e 2, 2, 2, 4, 4, 4,

%e 2, 2, 3, 4, 4, 6, 6,

%e 2, 2, 3, 4, 5, 6, 7, 8,

%e 2, 3, 3, 5, 6, 6, 7, 8, 9,

%e 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,

%e ...

%Y Cf. A236919.

%K nonn,tabl,more

%O 1,8

%A _N. J. A. Sloane_, Feb 11 2014