A262272 Number of (n+2)X(6+2) 0..1 arrays with each row and column divisible by 5, read as a binary number with top and left being the most significant bits.
52, 2704, 23977, 467065, 20331508, 1002110608, 41261408089, 1965295140265, 100013594816980, 5157201006399760, 263679548424381769, 13615797474906740569, 706318618109394294196, 36687081176072230888336
Offset: 1
Keywords
Examples
Some solutions for n=3 ..1..1..0..0..1..0..0..0....1..0..1..0..1..0..1..0....0..1..1..1..1..1..0..1 ..0..1..1..1..0..0..1..1....1..1..1..1..0..0..0..0....0..1..0..1..1..1..1..1 ..1..1..1..1..1..0..1..0....1..0..1..1..1..1..1..0....0..1..1..0..1..0..0..1 ..0..1..1..1..0..0..1..1....1..1..1..1..0..0..0..0....0..1..0..0..1..0..1..1 ..0..0..1..1..0..0..1..0....0..0..0..1..0..1..0..0....0..0..0..1..0..1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A262274.
Comments