A263032 Number of (n+2)X(n+2) 0..1 arrays with each row and column not divisible by 5, read as a binary number with top and left being the most significant bits.

98, 6928, 2840827, 4513054617, 23445293636576, 487724113265492752

Offset

1,1

Comments

Diagonal of A263040.

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=2
..1..1..1..0....1..0..1..1....1..0..0..0....0..1..0..0....1..1..1..0
..1..0..0..1....0..1..1..0....0..0..1..0....1..1..0..0....0..0..0..1
..0..0..0..1....0..0..1..0....1..1..1..0....1..1..0..1....1..1..1..0
..0..0..0..1....1..0..0..1....1..0..1..1....0..0..1..1....1..1..1..0

Crossrefs

Cf. A263040.

Sequence in context: A017761 A093298 A201389 * A168522 A173205 A181553

Adjacent sequences: A263029 A263030 A263031 * A263033 A263034 A263035

Keyword

nonn

Author

R. H. Hardin, Oct 08 2015

Status

approved