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A205166
Number of (n+1)X5 0..3 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..3 introduced in row major order
1
33831, 26702419, 21125224557, 16713430246949, 13223001109687815, 10461512493459648399, 8276732547425415428669, 6548221560172100787717125, 5180692423659560643509585071, 4098757768339496789285781750439
OFFSET
1,1
COMMENTS
Column 4 of A205170
LINKS
FORMULA
Empirical: a(n) = 833*a(n-1) -33758*a(n-2) +523880*a(n-3) -3857129*a(n-4) +13605853*a(n-5) -17604432*a(n-6) -15652010*a(n-7) +55894364*a(n-8) -22106688*a(n-9) -29904720*a(n-10) +18240672*a(n-11) +492672*a(n-12) -1016064*a(n-13)
EXAMPLE
Some solutions for n=4
..0..0..0..0..1....0..0..0..0..0....0..0..1..0..0....0..0..1..1..0
..2..1..3..0..0....0..1..2..1..0....2..0..3..0..2....0..1..1..0..2
..1..3..2..2..0....1..3..1..3..3....0..3..1..1..2....1..1..0..0..3
..2..2..1..1..0....1..1..0..0..1....0..2..0..1..0....1..3..0..1..0
..1..1..3..2..1....0..0..2..0..0....3..2..2..1..2....1..3..2..3..1
CROSSREFS
Sequence in context: A204949 A268909 A243467 * A238514 A252549 A231196
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 22 2012
STATUS
approved