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A280484
Number of 5Xn 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
1
0, 846, 17406, 214635, 2272190, 22475478, 208736159, 1872290290, 16303280577, 138811090897, 1160103714772, 9546680180339, 77537445203196, 622719069148966, 4952853901078386, 39060613089881366, 305763598880219395
OFFSET
1,2
COMMENTS
Row 5 of A280480.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0. .0..1..1. .0..0..1. .0..1..1. .0..0..1. .0..0..0. .0..0..0
..1..1..0. .1..1..2. .0..1..0. .1..2..2. .0..2..2. .0..0..0. .1..2..2
..0..0..2. .0..2..2. .1..0..1. .2..1..1. .2..2..0. .1..1..0. .2..1..1
..2..2..0. .2..2..2. .2..2..0. .1..2..1. .1..1..1. .1..2..0. .2..2..0
..0..0..1. .0..0..0. .2..0..0. .1..1..1. .2..2..2. .2..0..0. .2..0..0
CROSSREFS
Cf. A280480.
Sequence in context: A160212 A188296 A187861 * A203335 A252253 A247532
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 04 2017
STATUS
approved