A263335 - OEIS

A263335

Number of (n+2)X(2+2) 0..2 arrays with each row and column divisible by 13, read as a base-3 number with top and left being the most significant digits.

7, 19, 57, 409, 2047, 10747, 70423, 427507, 2610075, 16811257, 106973797, 685280521, 4472908837, 29110775719, 191077482297, 1268190506821, 8394627812935, 56013012538219, 376887163063705, 2528646896288971

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 2 of A263337.

LINKS

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

EXAMPLE

Some solutions for n=4

..0..2..2..2....1..1..1..0....1..2..2..1....0..0..0..0....0..2..2..2

..1..2..2..1....0..2..2..2....2..1..0..2....0..1..1..1....1..2..2..1

..1..1..1..0....1..1..1..0....1..2..2..1....0..0..0..0....2..2..2..0