A262270 Number of (n+2)X(4+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.
13, 169, 585, 3253, 37061, 467065, 4403641, 49793329, 628659565, 8114855785, 100698388425, 1284102518917, 16612868083733, 215733029771449, 2784755393197465, 36096259647083761, 468882349083176077
Offset: 1
Keywords
Examples
Some solutions for n=4 ..1..1..1..1..0..0....0..0..0..0..0..0....0..0..0..1..0..1....1..0..1..0..0..0 ..0..1..1..1..1..0....1..1..0..0..1..0....0..0..0..1..0..1....0..0..0..0..0..0 ..0..0..0..0..0..0....1..1..0..1..1..1....0..0..0..0..0..0....1..0..1..1..0..1 ..0..1..1..1..1..0....0..0..0..0..0..0....1..0..1..1..0..1....0..0..0..0..0..0 ..1..1..1..1..0..0....0..0..0..1..0..1....0..0..0..1..0..1....0..0..0..1..0..1 ..1..1..1..1..0..0....1..1..0..0..1..0....1..0..1..1..0..1....0..0..0..0..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A262274.
Comments