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A234413 Number of (n+1)X(n+1) 0..7 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1 0

%I

%S 106,5606,1131708,902381482,2857237950632,36116482489037416,

%T 1828227876741151008626,371458871749141017729716430,

%U 303446808354142538935528752787416

%N Number of (n+1)X(n+1) 0..7 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1

%C Diagonal of A234421

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 25 2013

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Last modified August 16 05:16 EDT 2022. Contains 356162 sequences. (Running on oeis4.)