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A262920 Number of (6+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits. 2

%I #4 Oct 04 2015 10:16:19

%S 19,61,1207,7417,152587,1550557,30497815,420921961,7895204299,

%T 126160746301,2313326012887,39531526974937,720265713036427,

%U 12724622932131997,232102910290030615,4177632885527495881

%N Number of (6+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

%C Row 6 of A262917.

%H R. H. Hardin, <a href="/A262920/b262920.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A262920/a262920.txt">Empirical recurrence of order 65</a>

%F Empirical recurrence of order 65 (see link above)

%e Some solutions for n=4

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

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

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

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

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

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

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

%Y Cf. A262917.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 04 2015

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Last modified August 10 10:51 EDT 2024. Contains 375044 sequences. (Running on oeis4.)