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 A183837 Number of (n+1)X(n+1) binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others 1
 11, 129, 3357, 197133, 25468475, 7377050305, 4699303424280, 6677571801577027, 20920936413508511832, 145733864202975702001549, 2243086329393853088964598846, 76619744675820265499643398728545 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A183845 LINKS R. H. Hardin, Table of n, a(n) for n = 1..13 EXAMPLE Some solutions for 3X3 ..1..1..1....1..1..1....1..1..0....1..0..0....1..0..1....1..1..0....1..0..0 ..1..0..1....0..0..1....0..1..0....0..1..1....1..1..1....0..0..1....1..1..1 ..1..1..1....1..1..1....0..1..0....1..0..1....0..0..1....1..1..0....0..1..0 CROSSREFS Sequence in context: A201877 A015602 A259507 * A015603 A184280 A266947 Adjacent sequences: A183834 A183835 A183836 * A183838 A183839 A183840 KEYWORD nonn AUTHOR R. H. Hardin Jan 07 2011 STATUS approved

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Last modified September 13 17:52 EDT 2024. Contains 375910 sequences. (Running on oeis4.)