|
|
A262913
|
|
Number of (n+1)X(4+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.
|
|
1
|
|
|
1, 11, 33, 137, 1411, 7417, 51769, 529931, 4701201, 44632313, 454922851, 4573641865, 46374477961, 476430252011, 4902011719233, 50649718388009, 526357874613571, 5483464232074777, 57393678601087705, 603752064813378251
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..0..1..1..0....1..1..1..1..0....1..1..0..0..0....0..1..1..0..0
..0..0..1..1..0....1..1..1..1..0....1..1..1..1..0....0..0..1..1..0
..1..1..1..1..0....1..1..1..1..0....1..1..1..1..0....1..1..1..1..0
..1..1..0..0..0....0..0..0..0..0....0..0..1..1..0....1..0..0..1..0
..1..1..0..0..0....0..0..0..0..0....0..0..0..0..0....1..1..0..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|