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 A241350 Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4 0
 2, 3, 19, 128, 615, 35880, 1904754, 109041097 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A241356 LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=4 ..3..2..3..3....2..3..3..2....2..3..2..2....2..3..3..2....3..2..3..3 ..3..1..2..3....2..1..1..2....2..1..1..2....2..1..1..1....3..2..2..1 ..2..3..0..2....2..0..3..2....2..0..3..3....3..2..3..3....2..3..3..2 ..3..0..1..3....2..0..1..2....2..0..0..1....3..2..2..2....3..2..0..2 CROSSREFS Sequence in context: A119344 A072877 A201378 * A032329 A219285 A066227 Adjacent sequences: A241347 A241348 A241349 * A241351 A241352 A241353 KEYWORD nonn AUTHOR R. H. Hardin, Apr 20 2014 STATUS approved

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Last modified September 26 02:15 EDT 2023. Contains 365649 sequences. (Running on oeis4.)