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A259721
Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011
1
722, 1219, 2858, 5458, 7076, 16294, 33846, 51254, 99106, 219106, 370024, 652886, 1414066, 2633049, 4520036, 9213528, 18221034, 32003265, 61343826, 123580357, 226046956, 418183961, 832221248, 1576875191, 2893948292, 5623390081
OFFSET
1,1
COMMENTS
Column 6 of A259723
FORMULA
Empirical recurrence of order 84 (see link above)
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..0..0..0....0..0..0..1..0..0..0..1....0..0..0..0..0..0..0..1
..0..0..0..0..1..0..0..1....1..0..0..1..0..0..1..1....0..0..1..1..0..0..1..1
..1..1..0..0..1..0..0..1....0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..1..0..0..1..0..0..1....1..0..0..1..0..0..1..0
..0..1..1..0..0..1..0..0....1..0..0..0..1..0..0..0....1..0..0..1..0..0..1..0
CROSSREFS
Sequence in context: A139165 A229049 A260498 * A133531 A206006 A231485
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 03 2015
STATUS
approved