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A293088
Number of 2 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
1
0, 0, 5, 23, 124, 518, 2103, 8304, 32561, 127188, 497290, 1944992, 7609668, 29781058, 116601073, 456769568, 1790429581, 7022484654, 27560850105, 108231066278, 425262686638, 1671850997415, 6576007463557, 25878627324698, 101888312587090
OFFSET
1,3
COMMENTS
Row 2 of A293087.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..0. .1..0..0..0. .1..1..0..0. .1..0..0..0. .0..0..1..0
..0..0..0..1. .0..0..1..0. .0..0..1..1. .0..1..0..0. .0..0..1..0
CROSSREFS
Cf. A293087.
Sequence in context: A361305 A200028 A020032 * A186755 A009321 A078509
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 30 2017
STATUS
approved