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 A184222 Half the number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3 0
 15, 411, 20958, 4207437, 2100723171, 3390680573862, 15315046904131217, 208931377551712553029, 8272310043853147026573208, 970110871920573518964680291007, 333510642857168957639513329116920351 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A184231 LINKS EXAMPLE Some solutions for 3X3 ..0..3..1....1..0..3....1..3..1....3..1..2....3..0..2....2..1..3....3..0..2 ..2..0..3....0..3..0....2..0..2....0..3..0....0..3..0....0..3..0....0..2..0 ..0..2..1....1..0..1....0..2..0....3..2..3....3..2..3....3..2..3....2..0..3 CROSSREFS Sequence in context: A279133 A034675 A216343 * A069431 A133791 A323781 Adjacent sequences:  A184219 A184220 A184221 * A184223 A184224 A184225 KEYWORD nonn AUTHOR R. H. Hardin Jan 10 2011 STATUS approved

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Last modified May 26 13:17 EDT 2022. Contains 354092 sequences. (Running on oeis4.)