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A259769 Number of (n+2) X (5+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 or 00000101. 1
376, 564, 612, 474, 400, 798, 524, 450, 588, 644, 540, 568, 1060, 716, 692, 1108, 1092, 902, 896, 1610, 1112, 1022, 1552, 1406, 1180, 1216, 2116, 1448, 1408, 2344, 2016, 1686, 1688, 2906, 1988, 1882, 3060, 2492, 2108, 2152, 3652, 2468, 2412, 4124, 3264 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A259770.
LINKS
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..1..0..0..0..0..0....0..0..0..0..0..0..1....0..0..0..1..0..0..0
..0..0..1..0..0..0..1....0..0..1..0..0..1..0....0..0..0..0..0..0..1
..0..0..0..0..0..1..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....0..0..0..1..0..0..0
..0..0..1..0..0..0..0....0..0..0..0..1..0..0....1..0..0..0..1..0..0
..0..0..0..1..0..1..0....1..0..0..1..0..1..0....0..0..0..0..0..0..0
CROSSREFS
Cf. A259770.
Sequence in context: A247263 A251652 A251645 * A238231 A008853 A188007
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 04 2015
STATUS
approved

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Last modified July 20 05:10 EDT 2024. Contains 374441 sequences. (Running on oeis4.)