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A222910 Number of 5Xn 0..3 arrays with no more than floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

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%I A222910 #5 Jul 23 2025 03:14:56
%S A222910 51,411,4909,180203,2117424,115414184,1616042692,101812249660,
%T A222910 1647125896526,116484133514908,2045481314796291,151436398227691009,
%U A222910 2739472417059940802,205949331213920597815
%N A222910 Number of 5Xn 0..3 arrays with no more than floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
%C A222910 Row 5 of A222906
%e A222910 Some solutions for n=3
%e A222910 ..0..0..1....0..1..1....0..0..1....0..0..0....0..1..2....0..0..0....0..0..1
%e A222910 ..0..0..0....1..1..1....2..3..3....0..0..0....2..1..1....0..0..0....2..0..0
%e A222910 ..0..0..0....1..1..0....3..3..3....1..0..2....0..1..1....1..2..0....0..3..3
%e A222910 ..1..1..1....1..1..2....3..3..0....1..0..0....1..1..1....2..2..2....3..3..3
%e A222910 ..1..1..1....1..1..1....3..3..3....0..0..0....1..1..1....2..2..2....3..3..3
%K A222910 nonn
%O A222910 1,1
%A A222910 _R. H. Hardin_ Mar 09 2013

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