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A235257 Number of (n+1)X(7+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant stress tilted 1X1 tilings) 0

%I

%S 600928,1330480,2873128,7200188,17480904,47995084,126993640,373324260,

%T 1053946488,3264942732,9696780840,31291585876

%N Number of (n+1)X(7+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant stress tilted 1X1 tilings)

%C Column 7 of A235258

%e Some solutions for n=1

%e ..4..3..6..1..5..3..4..3....4..0..6..2..6..2..4..0....6..0..3..1..7..2..5..2

%e ..0..6..2..4..1..6..0..6....2..5..4..7..4..7..2..5....4..5..1..6..5..7..3..7

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 05 2014

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Last modified September 26 12:04 EDT 2021. Contains 347665 sequences. (Running on oeis4.)