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A261552 Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011. 1
652, 871, 1210, 816, 656, 1273, 1084, 855, 1036, 1259, 906, 967, 1868, 1421, 1174, 1872, 2062, 1490, 1414, 2701, 2106, 1737, 2594, 2660, 1956, 1979, 3720, 2663, 2258, 3851, 3776, 2770, 2630, 4948, 3568, 3023, 4994, 4687, 3466, 3399, 6362, 4345, 3746 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A261553.

LINKS

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

FORMULA

Empirical: a(n) = 2*a(n-7) -2*a(n-21) +a(n-28) for n>34

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Cf. A261553.

Sequence in context: A257715 A048915 A257827 * A002232 A127029 A127030

Adjacent sequences:  A261549 A261550 A261551 * A261553 A261554 A261555

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 24 2015

STATUS

approved

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Last modified August 3 08:53 EDT 2020. Contains 336197 sequences. (Running on oeis4.)