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Number of horizontal, diagonal and antidiagonal neighbor colorings of the odd squares of an nX5 array with new integer colors introduced in row major order
1

%I #4 Sep 10 2012 11:27:58

%S 1,5,41,3429,83437,20880505,942420901,484968748793,33862631596393,

%T 30012936243058237,2941251571063448753,4040674235335081456861,

%U 522798156103780731219765,1037627124289198371293601937

%N Number of horizontal, diagonal and antidiagonal neighbor colorings of the odd squares of an nX5 array with new integer colors introduced in row major order

%C Column 5 of A216612

%H R. H. Hardin, <a href="/A216610/b216610.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=4

%e ..x..0..x..1..x....x..0..x..1..x....x..0..x..1..x....x..0..x..1..x

%e ..2..x..3..x..4....2..x..3..x..0....2..x..3..x..4....1..x..2..x..3

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Sep 10 2012