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A208861
Number of nX5 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors
1
51, 23047, 12883280, 7240366702, 4071491223248, 2289701830963879, 1287681340443915644, 724166398812363542260, 407256849342915985761092, 229033195050822330468202369, 128803738036903910358389563556
OFFSET
1,1
COMMENTS
Column 5 of A208864
LINKS
FORMULA
Empirical: a(n) = 831*a(n-1) -179993*a(n-2) +17822337*a(n-3) -914949819*a(n-4) +23168761555*a(n-5) -161356715633*a(n-6) -4487021565447*a(n-7) +88170625092243*a(n-8) -89146256087223*a(n-9) -9123849468343275*a(n-10) +57411954474413179*a(n-11) +280936943350232287*a(n-12) -3595338835588287543*a(n-13) +1929659835323795485*a(n-14) +90093226296032329771*a(n-15) -288134852946702870262*a(n-16) -742914836218346528932*a(n-17) +7115855576376274368216*a(n-18) -24955774603971431557536*a(n-19) +63937383750208880620992*a(n-20) -111375370598187857506560*a(n-21) +72057203548966403859456*a(n-22) +76274285418217337610240*a(n-23) -111975434876548575756288*a(n-24) +5300659781619687751680*a(n-25) +29374280040899283517440*a(n-26) -7836898836947747733504*a(n-27) for n>28
EXAMPLE
Some solutions for n=4
..0..0..0..0..1....0..0..0..0..0....0..1..0..0..0....0..1..1..0..0
..1..1..1..2..1....0..1..1..2..2....1..0..1..1..1....0..1..2..0..1
..2..3..0..1..2....2..2..3..2..3....1..0..2..3..2....3..2..3..1..2
..0..0..1..3..0....3..1..1..2..1....3..2..3..1..1....2..0..1..0..0
CROSSREFS
Sequence in context: A241332 A202886 A223059 * A208869 A208876 A208172
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 02 2012
STATUS
approved