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 A215922 Number of 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 Aug 27 2012 10:55:16

%S 2,15,136,12840,322768,87852626,4044766240,2227156082842,

%T 157752739276184,148049849095504726,14670983946354664200,

%U 21183598567292002167082,2765649842153732133940784,5737167377815628378510929822

%N Number of 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 A215924

%H R. H. Hardin, <a href="/A215922/b215922.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Aug 27 2012

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Last modified May 24 01:38 EDT 2024. Contains 372768 sequences. (Running on oeis4.)