A262919 Number of (5+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

10, 27, 318, 1411, 18190, 121507, 1444558, 12031011, 132033870, 1214394787, 12726094798, 122360994211, 1252258147150, 12289486776867, 124300598233038, 1231754978783011, 12386462076574030, 123317516595907747

Offset

1,1

Comments

Row 5 of A262917.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 14*a(n-1) +39*a(n-2) -1106*a(n-3) +1561*a(n-4) +22386*a(n-5) -57539*a(n-6) -89894*a(n-7) +251940*a(n-8) +68600*a(n-9) -196000*a(n-10)

Example

Some solutions for n=4
..0..0..0..1..1....1..1..0..1..1....0..0..0..0..0....0..0..0..0..0
..0..0..0..1..1....0..0..1..1..0....0..0..1..1..0....0..0..1..1..0
..1..0..1..0..1....1..1..1..1..0....0..0..0..0..0....0..0..0..0..0
..1..0..1..0..1....0..0..1..1..0....0..1..1..1..1....1..1..1..1..0
..1..0..1..0..1....1..1..0..1..1....0..1..0..0..1....1..1..0..0..0
..0..0..0..1..1....0..0..0..1..1....0..1..1..1..1....1..1..1..1..0

Crossrefs

Cf. A262917.

Sequence in context: A219629 A262316 A362737 * A370672 A007705 A196356

Adjacent sequences: A262916 A262917 A262918 * A262920 A262921 A262922

Keyword

nonn

Author

R. H. Hardin, Oct 04 2015

Status

approved