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 A146450 Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1100-0110-0011 pattern in any orientation. 0
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 7, 7, 15, 15, 49, 49, 233, 233, 1205, 1205, 7091, 7091, 56369, 56369, 554977, 554977, 6653663, 6653663 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,11 LINKS Table of n, a(n) for n=1..30. EXAMPLE Maximal 11 X 11 example .0.0.1.0.0.0.0.0.1.0.0 .0.0.1.1.0.0.0.1.1.0.0 .1.1.0.1.1.0.1.1.0.1.1 .0.1.1.0.1.0.1.0.1.1.0 .0.0.1.1.0.0.0.1.1.0.0 .0.0.0.0.0.0.0.0.0.0.0 .0.0.1.1.0.0.0.1.1.0.0 .0.1.1.0.1.0.1.0.1.1.0 .1.1.0.1.1.0.1.1.0.1.1 .0.0.1.1.0.0.0.1.1.0.0 .0.0.1.0.0.0.0.0.1.0.0 CROSSREFS Sequence in context: A147381 A146035 A147190 * A233810 A263869 A174583 Adjacent sequences: A146447 A146448 A146449 * A146451 A146452 A146453 KEYWORD nonn AUTHOR R. H. Hardin STATUS approved

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Last modified August 6 13:43 EDT 2024. Contains 374974 sequences. (Running on oeis4.)