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A194777 Number of lower triangles of an (n+12) X (n+12) 0..7 array with new values introduced in row major order 0..7 and no element unequal to more than one horizontal or vertical neighbor. 0

%I #6 Oct 27 2019 21:39:55

%S 85013,231445,639753,1784723,5044981,14399939,41587186,121261490,

%T 357312638,1062459348,3188769448,9649809740,29439886715,90469050263,

%U 279932030931,871510145365

%N Number of lower triangles of an (n+12) X (n+12) 0..7 array with new values introduced in row major order 0..7 and no element unequal to more than one horizontal or vertical neighbor.

%C Column 7 of A194778.

%e Some solutions for 13 X 13 including a 7:

%e 0 0

%e 1 1 1 1

%e 1 1 1 1 1 1

%e 2 2 2 2 2 2 2 2

%e 2 2 2 2 2 2 2 2 2 2

%e 3 3 3 3 3 3 3 3 3 3 3 3

%e 3 3 3 3 3 3 3 3 3 3 3 3 3 3

%e 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

%e 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

%e 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

%e 5 5 5 5 5 5 5 5 5 5 6 5 5 5 5 5 5 5 5 5 5 5

%e 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6

%e 5 5 5 5 5 5 5 5 5 5 6 6 7 6 6 6 6 6 6 6 6 6 6 6 6 7

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 02 2011

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)