A236919 Triangle read by rows: (2,2) broadcast domination numbers.

1, 2, 2, 2, 3, 4, 3, 4, 6, 8, 3, 5, 7, 10, 11, 4, 6, 8, 12, 14, 16, 4, 7, 10, 13, 16, 19, 21, 5, 8, 11, 15, 18, 22, 25, 28, 5, 9, 12, 17, 20, 24, 28, 32, 35, 6, 10, 14, 19, 22, 27, 30, 35, 39, 42

Offset

1,2

Links

Table of n, a(n) for n=1..55.

D. Blessing, E. Insko, K. Johnson, C. Mauretour, On (t,r) Broadcast Domination Numbers of Grids, arXiv preprint arXiv:1401.2499, 2014

Example

Triangle begins:
1,
2, 2,
2, 3, 4,
3, 4, 6, 8,
3, 5, 7, 10, 11,
4, 6, 8, 12, 14, 16,
4, 7, 10, 13, 16, 19, 21,
5, 8, 11, 15, 18, 22, 25, 28,
5, 9, 12, 17, 20, 24, 28, 32, 35,
6, 10, 14, 19, 22, 27, 30, 35, 39, 42,
...

Crossrefs

Cf. A236920.

Sequence in context: A085755 A330216 A241952 * A138304 A054860 A098745

Adjacent sequences: A236916 A236917 A236918 * A236920 A236921 A236922

Keyword

nonn,tabl,more

Author

N. J. A. Sloane, Feb 11 2014

Status

approved