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 A146402 Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1000-1111-0010 pattern in any orientation. 0
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 7, 7, 21, 21, 51, 51, 261, 261, 1539, 1539, 11759, 11759 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,13 LINKS EXAMPLE Maximal 13 X 13 example .0.0.0.0.0.1.0.1.0.0.0.0.0 .0.0.1.1.1.1.0.1.1.1.1.0.0 .0.1.0.1.0.0.0.0.0.1.0.1.0 .0.1.1.0.0.0.0.0.0.0.1.1.0 .0.1.0.0.0.0.0.0.0.0.0.1.0 .1.1.0.0.0.0.0.0.0.0.0.1.1 .0.0.0.0.0.0.0.0.0.0.0.0.0 .1.1.0.0.0.0.0.0.0.0.0.1.1 .0.1.0.0.0.0.0.0.0.0.0.1.0 .0.1.1.0.0.0.0.0.0.0.1.1.0 .0.1.0.1.0.0.0.0.0.1.0.1.0 .0.0.1.1.1.1.0.1.1.1.1.0.0 .0.0.0.0.0.1.0.1.0.0.0.0.0 CROSSREFS Sequence in context: A146615 A146735 A146711 * A146410 A146466 A146141 Adjacent sequences:  A146399 A146400 A146401 * A146403 A146404 A146405 KEYWORD nonn AUTHOR EXTENSIONS Example repaired. - R. H. Hardin, Nov 04 2008 STATUS approved

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Last modified August 11 15:10 EDT 2022. Contains 356066 sequences. (Running on oeis4.)