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A219309
Unchanging value maps: number of n X 7 binary arrays indicating the locations of corresponding elements unequal to no horizontal or vertical neighbor in a random 0..2 n X 7 array.
0
37, 1157, 43725, 1574278, 54797587, 1935133104, 68906619754, 2448261182674, 86782430779997
OFFSET
1,1
COMMENTS
Column 7 of A219310.
EXAMPLE
Some solutions for n=3
..0..0..1..0..0..0..0....1..1..1..0..0..0..1....0..0..0..1..1..0..1
..0..0..0..0..1..0..0....0..1..1..0..0..0..1....0..0..0..0..0..0..0
..1..0..0..0..1..0..0....0..0..1..1..0..0..1....0..1..0..1..0..0..0
CROSSREFS
Cf. A219310.
Sequence in context: A168166 A168165 A340539 * A099201 A218841 A246461
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2012
STATUS
approved