A263372 Number of (n+1)X(7+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.

37, 1359, 1260442, 943196037, 883978450474, 787253224440475

Offset

1,1

Comments

Column 7 of A263373.

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=2
..0..0..1..0..0..1..0..0....2..2..2..0..2..2..2..2....2..2..0..0..1..0..0..0
..0..2..1..0..2..1..0..0....1..1..1..0..1..1..1..1....1..1..0..2..1..2..2..0
..0..1..2..0..1..2..0..0....0..0..0..0..0..0..0..0....0..0..0..1..2..1..1..0

Crossrefs

Cf. A263373.

Sequence in context: A170756 A218739 A217961 * A206565 A223225 A262763

Adjacent sequences: A263369 A263370 A263371 * A263373 A263374 A263375

Keyword

nonn

Author

R. H. Hardin, Oct 16 2015

Status

approved