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A260500 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001011 1
3446, 4393, 11450, 22405, 30590, 67993, 155232, 238047, 464696, 1101861, 1918174, 3455378, 7911060, 15278603, 27003724, 57946329, 118720366, 215170020, 434883634, 908857723, 1710433300, 3334349545, 6924650180, 13468317384 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A260501

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..0..0..1..0..0..0..0..0....0..1..0..0..1..1..0..0..1

..0..0..0..1..0..0..1..0..0....0..0..0..0..0..0..0..0..0

..1..0..0..0..0..0..1..0..0....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0....1..1..0..0..1..0..0..1..1

..0..0..0..1..0..0..0..0..0....0..0..0..0..1..0..0..0..0

..1..0..0..1..0..1..1..0..0....1..0..0..0..0..0..0..0..0

CROSSREFS

Cf. A260501

Sequence in context: A324680 A273341 A107537 * A202644 A218830 A210626

Adjacent sequences:  A260497 A260498 A260499 * A260501 A260502 A260503

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 27 2015

STATUS

approved

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Last modified May 15 23:51 EDT 2022. Contains 353687 sequences. (Running on oeis4.)