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A258956 Number of (n+3)X(7+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum 1

%I #4 Jun 15 2015 12:30:45

%S 169347520,44522440,18461564,6869922,2456098,1416722,918188,890370,

%T 811958,1035056,1196160,1600718,2566134,4124988,6608642,11948670,

%U 21543478,41323796,77825118,150708442,291396336,575053846,1132458216

%N Number of (n+3)X(7+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum

%C Column 7 of A258957

%H R. H. Hardin, <a href="/A258956/b258956.txt">Table of n, a(n) for n = 1..41</a>

%e Some solutions for n=1

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

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

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

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

%Y Cf. A258957

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 15 2015

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Last modified April 20 00:03 EDT 2024. Contains 371798 sequences. (Running on oeis4.)