A262854 Number of (5+2)X(n+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits.

109, 1264, 31512, 3896365, 290338650, 26232879096, 2864161217701, 297481646988280

Offset

1,1

Comments

Row 5 of A262849.

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=3
..1..0..1..0..1....1..0..1..0..1....1..1..1..0..0....0..0..1..1..1
..0..0..0..0..0....0..1..1..1..0....1..0..1..0..1....0..0..0..0..0
..1..1..1..0..0....1..0..1..0..1....0..1..1..1..0....1..1..1..0..0
..1..1..1..0..0....1..0..1..0..1....1..0..1..0..1....1..1..1..0..0
..0..1..1..1..0....1..1..1..0..0....1..0..1..0..1....1..1..1..0..0
..0..0..0..0..0....1..0..1..0..1....1..0..1..0..1....0..0..0..0..0
..1..1..1..0..0....1..1..1..0..0....1..1..1..0..0....1..1..1..0..0

Crossrefs

Cf. A262849.

Sequence in context: A096214 A173665 A059936 * A232118 A201849 A061724

Adjacent sequences: A262851 A262852 A262853 * A262855 A262856 A262857

Keyword

nonn

Author

R. H. Hardin, Oct 03 2015

Status

approved