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A262911 Number of (n+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. 0
1, 3, 15, 137, 18190, 1550557, 1282949605 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A262917.

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

..0..1..0..0..1....1..0..0..1..0....0..0..0..0..0....0..1..1..0..0

..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0

..0..1..1..1..1....1..1..1..1..0....0..1..1..1..1....0..1..1..0..0

..0..0..1..1..0....0..1..1..0..0....0..1..1..1..1....0..0..0..0..0

..0..1..1..1..1....1..1..1..1..0....0..1..1..1..1....0..1..1..0..0

CROSSREFS

Cf. A262917.

Sequence in context: A113723 A113379 A267018 * A163949 A005816 A179470

Adjacent sequences:  A262908 A262909 A262910 * A262912 A262913 A262914

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 04 2015

STATUS

approved

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Last modified August 15 12:09 EDT 2022. Contains 356145 sequences. (Running on oeis4.)