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A206166
Number of (n+1)X6 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order
1
44585, 2728486, 431954406, 26687737998, 4224315021758, 261163772277422, 41314757480152390, 2555772676080108894, 404068253225094442462, 25011015403359106400926, 3951885553297306130869094
OFFSET
1,1
COMMENTS
Column 5 of A206169
LINKS
FORMULA
Empirical: a(n) = a(n-1) +9828*a(n-2) -9212*a(n-3) -491461*a(n-4) +246821*a(n-5) -124896442*a(n-6) +101165298*a(n-7) +1292222472*a(n-8) -569164536*a(n-9) -3891044736*a(n-10) +445357440*a(n-11) +3104538624*a(n-12) for n>13
EXAMPLE
Some solutions for n=4
..0..0..1..1..0..2....0..0..0..0..0..0....0..1..1..2..2..0....0..1..0..0..0..0
..1..0..0..1..1..0....0..1..0..1..0..1....1..3..1..1..2..2....0..1..2..1..1..3
..1..2..2..2..2..2....0..2..3..1..3..1....0..2..0..3..3..3....0..0..1..1..0..1
..2..0..2..3..2..1....2..1..2..3..0..3....2..2..2..0..3..2....1..3..2..3..2..1
..1..1..1..0..2..3....0..3..2..1..0..2....1..1..3..1..3..2....2..1..3..1..3..2
CROSSREFS
Sequence in context: A258507 A254994 A295480 * A206380 A204786 A248066
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 04 2012
STATUS
approved