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 A239991 Number of 7 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. 1
 15, 208, 4113, 70107, 1174822, 16721012, 226886115, 2823199343, 33074332722, 366468588411, 3862531765288, 38827887664460, 374132975836928, 3462018008021025, 30769710869286232, 262533007814160639 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A239986. LINKS R. H. Hardin, Table of n, a(n) for n = 1..53 EXAMPLE Some solutions for n=3: ..3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0 ..3..1..3....3..1..3....3..1..3....2..1..0....2..3..0....2..3..0....3..1..3 ..2..1..0....3..1..2....3..1..3....2..0..0....2..0..1....2..0..0....3..2..3 ..3..2..2....2..3..2....2..3..3....3..0..0....2..0..0....3..2..0....2..3..3 ..2..1..0....2..0..0....2..1..2....3..2..0....2..0..0....3..1..3....2..1..2 ..2..1..0....2..0..0....2..1..2....2..3..3....3..2..2....2..3..3....2..0..3 ..2..1..1....2..1..2....2..0..1....3..2..2....3..1..3....3..0..2....3..0..1 CROSSREFS Sequence in context: A271333 A051813 A280160 * A274563 A122572 A028230 Adjacent sequences: A239988 A239989 A239990 * A239992 A239993 A239994 KEYWORD nonn AUTHOR R. H. Hardin, Mar 30 2014 STATUS approved

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Last modified September 16 15:31 EDT 2024. Contains 375976 sequences. (Running on oeis4.)