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A259296
Number of (n+1)X(7+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0001 0101 or 0111
1
2850, 48002, 688966, 10862998, 165147350, 2569298018, 39630793526, 614892766122, 9520588610288, 147638975405998, 2288282428291294, 35481706382671702, 550094139974674302, 8529516121257973378
OFFSET
1,1
COMMENTS
Column 7 of A259297
FORMULA
Empirical recurrence of order 72 (see link above)
EXAMPLE
Some solutions for n=2
..1..0..0..0..0..0..0..0....1..1..1..1..1..0..1..0....0..1..0..0..1..1..1..0
..0..0..1..0..1..0..1..0....0..1..0..1..0..0..0..1....1..0..0..1..0..1..0..1
..0..1..1..1..1..1..1..1....1..0..1..1..1..0..1..0....0..1..0..0..0..0..1..1
CROSSREFS
Sequence in context: A254737 A234416 A218597 * A374373 A020429 A255026
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 23 2015
STATUS
approved