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A258954 Number of (n+3)X(5+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum 1

%I #4 Jun 15 2015 12:29:22

%S 7668960,4964896,4268548,3415506,2618602,2593544,2456098,2490028,

%T 2643922,3075602,3735298,4582378,6256796,9001820,13243630,20983172,

%U 34318822,59177314,104490212,189343742,350665710,663040982,1266664660,2442213802

%N Number of (n+3)X(5+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum

%C Column 5 of A258957

%H R. H. Hardin, <a href="/A258954/b258954.txt">Table of n, a(n) for n = 1..57</a>

%e Some solutions for n=1

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

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

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

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

%Y Cf. A258957

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 15 2015

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)