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A262470 Number of (n+1)X(6+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits. 1

%I #4 Sep 23 2015 18:50:50

%S 1,43,1849,16081,234421,8080915,326748241,10190636521,367750753321,

%T 14893989614299,614943639587257,25082322234133297,1040046474998577205,

%U 43832347852302709171,1854080585134116272977,78605030988741667500553

%N Number of (n+1)X(6+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits.

%C Column 6 of A262472.

%H R. H. Hardin, <a href="/A262470/b262470.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A262472.

%K nonn

%O 1,2

%A _R. H. Hardin_, Sep 23 2015

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)