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A263123 Number of (n+3)X(5+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits. 0

%I #3 Oct 10 2015 07:08:41

%S 52446,887805,17782827,344322375,6946980030,113558538589,

%T 2022945129963,36861501672007,713132356848318,12055652684915197

%N Number of (n+3)X(5+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.

%C Column 5 of A263124.

%e Some solutions for n=1

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

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

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

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

%Y Cf. A263124.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 10 2015

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Last modified September 12 19:24 EDT 2024. Contains 375853 sequences. (Running on oeis4.)