A262477 Number of (7+1)X(n+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.
52, 321, 15732, 239281, 11489332, 326748241, 15659602612, 630055962801, 30747458524212, 1434032788185361, 71428214742445492, 3530662718745118321, 178630052786322359092, 9048815928661992297681, 462641624539547827848372
Offset: 1
Keywords
Examples
Some solutions for n=3 ..1..0..0..1....0..1..1..0....0..1..1..0....1..1..0..0....0..0..1..1 ..1..1..0..0....1..0..0..1....0..1..1..0....0..0..1..1....0..1..1..0 ..1..1..0..0....1..1..1..1....0..0..1..1....0..1..1..0....0..0..1..1 ..1..1..0..0....1..0..0..1....0..0..1..1....0..1..1..0....0..1..1..0 ..1..1..0..0....0..0..0..0....1..1..0..0....0..0..1..1....0..1..1..0 ..1..1..0..0....0..0..0..0....1..1..0..0....0..1..1..0....0..1..1..0 ..1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1....0..1..1..0 ..1..1..0..0....1..0..0..1....1..1..0..0....0..0..1..1....0..1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..102
Crossrefs
Cf. A262472.
Comments