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A215958 Number of horizontal, vertical and diagonal neighbor colorings of the even squares of an nX7 array with new integer colors introduced in row major order 0

%I #3 Aug 28 2012 14:28:35

%S 5,136,35167,5219070,10289785215,4761748786964

%N Number of horizontal, vertical and diagonal neighbor colorings of the even squares of an nX7 array with new integer colors introduced in row major order

%C Column 7 of A215959

%e Some solutions for n=4

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

%e ..x..1..x..3..x..1..x....x..1..x..4..x..0..x....x..1..x..4..x..5..x

%e ..1..x..3..x..1..x..4....1..x..3..x..5..x..6....1..x..3..x..0..x..1

%e ..x..4..x..2..x..4..x....x..2..x..7..x..2..x....x..3..x..0..x..2..x

%K nonn

%O 1,1

%A _R. H. Hardin_ Aug 28 2012

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)