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 A219399 Unchanging value maps: number of nX4 binary arrays indicating the locations of corresponding elements unequal to no king-move neighbor in a random 0..1 nX4 array 1

%I #4 Nov 19 2012 12:09:08

%S 7,7,43,165,649,2527,10011,39787,157725,623929,2468377,9771861,

%T 38692747,153187901,606420643,2400630287,9503657933,37623622731,

%U 148945583497,589647430651,2334303207355,9241081910623,36583780864769,144828561920695

%N Unchanging value maps: number of nX4 binary arrays indicating the locations of corresponding elements unequal to no king-move neighbor in a random 0..1 nX4 array

%C Column 4 of A219403

%H R. H. Hardin, <a href="/A219399/b219399.txt">Table of n, a(n) for n = 1..75</a>

%F Empirical: a(n) = 5*a(n-1) -7*a(n-2) +8*a(n-3) +19*a(n-4) -19*a(n-5) -17*a(n-6) +26*a(n-7) -13*a(n-8) -41*a(n-9) -11*a(n-10) -14*a(n-11) +18*a(n-12) +45*a(n-13) -11*a(n-14) -36*a(n-15) +8*a(n-16) +17*a(n-17) -5*a(n-18) -5*a(n-19) +2*a(n-20) for n>21

%e Some solutions for n=3

%e ..0..0..0..1....0..0..1..1....1..1..1..1....0..0..0..1....0..0..1..1

%e ..0..0..0..1....0..0..0..1....1..0..0..0....0..0..0..1....0..0..0..0

%e ..1..1..1..1....0..0..0..1....1..0..0..0....0..0..0..1....1..1..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 19 2012

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Last modified June 9 19:10 EDT 2023. Contains 363183 sequences. (Running on oeis4.)