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 A239979 Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4 0
 1, 3, 13, 171, 7113, 652346, 226886115, 198719581101 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A239986 LINKS EXAMPLE Some solutions for n=4 ..3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0 ..2..3..3..3....2..3..0..0....2..1..0..0....2..1..0..0....2..3..3..3 ..2..0..0..3....2..0..0..0....2..0..3..0....2..0..0..3....2..0..0..3 ..3..0..0..1....2..0..1..1....3..0..0..1....3..1..1..3....3..0..2..2 CROSSREFS Sequence in context: A290758 A290769 A213794 * A261361 A114317 A168320 Adjacent sequences:  A239976 A239977 A239978 * A239980 A239981 A239982 KEYWORD nonn AUTHOR R. H. Hardin, Mar 30 2014 STATUS approved

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Last modified June 19 05:30 EDT 2019. Contains 324218 sequences. (Running on oeis4.)