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 A206106 Number of (n+1) X 6 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards. 1

%I #7 Dec 11 2015 12:00:57

%S 574364,48804116,5942161220,816173366244,115868265653308,

%T 16603949695703620,2387286725178431788,343749924935562751988,

%U 49536398579755532266076,7141814076861761405917992

%N Number of (n+1) X 6 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards.

%C Column 5 of A206109.

%H R. H. Hardin, <a href="/A206106/b206106.txt">Table of n, a(n) for n = 1..70</a>

%e Some solutions for n=4:

%e ..3..3..1..2..3..3....1..3..0..1..0..1....2..2..3..1..2..2....2..3..0..1..0..0

%e ..1..1..1..2..3..1....3..2..3..0..1..2....0..1..2..0..1..3....2..3..0..0..0..1

%e ..2..1..2..2..2..2....0..3..1..2..3..3....1..2..1..3..0..0....2..3..3..3..3..1

%e ..2..1..1..1..1..3....2..0..2..0..2..0....2..1..0..2..3..1....3..3..2..2..2..2

%e ..1..1..2..1..0..3....1..2..3..2..1..0....3..2..1..0..2..1....0..3..2..0..0..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 03 2012

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Last modified December 2 13:39 EST 2023. Contains 367524 sequences. (Running on oeis4.)