A262920 Number of (6+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.

19, 61, 1207, 7417, 152587, 1550557, 30497815, 420921961, 7895204299, 126160746301, 2313326012887, 39531526974937, 720265713036427, 12724622932131997, 232102910290030615, 4177632885527495881

Offset

1,1

Comments

Row 6 of A262917.

Links

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

R. H. Hardin, Empirical recurrence of order 65

Formula

Empirical recurrence of order 65 (see link above)

Example

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

Crossrefs

Cf. A262917.

Sequence in context: A201812 A262317 A214150 * A183455 A183340 A195749

Adjacent sequences: A262917 A262918 A262919 * A262921 A262922 A262923

Keyword

nonn

Author

R. H. Hardin, Oct 04 2015

Status

approved