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 A187599 Number of (n+2)X5 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum 1

%I #5 Mar 31 2012 12:36:08

%S 4034228,292759792,21834817212,1616392693134,119535001467744,

%T 8847026088947870,654776681640016806,48458293039460233184,

%U 3586264824879128318610,265411874452236154181166

%N Number of (n+2)X5 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum

%C Column 3 of A187600

%H R. H. Hardin, <a href="/A187599/b187599.txt">Table of n, a(n) for n = 1..31</a>

%e Some solutions for 4X5

%e ..0..0..2..0..2....0..0..0..2..2....0..0..1..0..1....0..0..1..1..0

%e ..0..0..0..2..0....0..0..2..1..1....0..0..2..0..1....0..0..2..2..0

%e ..0..0..2..2..2....0..0..0..0..1....0..0..2..2..1....0..0..0..2..1

%e ..0..0..2..1..0....0..0..2..2..2....0..0..1..2..2....0..0..2..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 11 2011

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Last modified May 28 16:36 EDT 2024. Contains 372916 sequences. (Running on oeis4.)