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 A260169 Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010001 0
 40, 167, 1054, 6973, 61216, 651914, 7542684, 110062152, 2074273964, 43510471716, 1129587053318, 36200205626536, 1417187649633280 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A260177 LINKS EXAMPLE Some solutions for n=4 ..1..0..0..0..0..0....0..1..0..1..0..1....0..0..0..1..0..0....1..0..0..0..1..0 ..0..0..0..1..0..0....0..0..0..0..0..0....1..0..0..0..1..0....0..1..0..0..0..0 ..0..0..1..0..0..0....0..0..0..0..0..0....0..1..0..0..0..0....0..0..0..0..1..0 ..0..1..0..0..0..1....0..1..0..1..0..0....0..0..0..0..1..0....0..0..0..1..0..0 ..1..0..0..0..1..0....1..0..0..0..1..0....0..1..0..0..0..1....1..0..0..0..0..0 ..0..0..0..1..0..0....0..0..0..0..0..0....1..0..1..0..0..0....0..1..0..0..0..0 CROSSREFS Cf. A260177 Sequence in context: A190073 A250592 A250585 * A205249 A211155 A250994 Adjacent sequences:  A260166 A260167 A260168 * A260170 A260171 A260172 KEYWORD nonn AUTHOR R. H. Hardin, Jul 17 2015 STATUS approved

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Last modified October 16 13:10 EDT 2019. Contains 328067 sequences. (Running on oeis4.)