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A183743 Number of (n+1) X 5 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4. 1

%I #11 Jan 27 2022 22:44:36

%S 10231,1389521,263234281,55212617129,12024860660055,2669694620697299,

%T 600788747889666009,136582348832416596017,31294543292138683447483,

%U 7214884502508988515767997,1671725517531838676446355621

%N Number of (n+1) X 5 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4.

%C Column 4 of A183748.

%H R. H. Hardin, <a href="/A183743/b183743.txt">Table of n, a(n) for n = 1..47</a>

%e Some solutions for 3 X 5:

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

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

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

%e ...

%e ...M..E..P..M.......M..M..P..P.......M..M..E..P.......M..M..P..P...

%e ...E..E..P..E.......M..M..P..P.......M..P..P..E.......M..M..P..P...

%Y Cf. A183748.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 06 2011

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Last modified September 16 17:01 EDT 2024. Contains 375976 sequences. (Running on oeis4.)