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A261939 Number of (n+1)X(4+1) 0..1 arrays with each row nonprime and column prime, read as a binary number with top and left being the most significant bits. 0
0, 147, 746, 7943, 50994, 367390, 2840132, 26703908, 234458622, 2153468514 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 4 of A261942.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0..0....0..1..1..0..0....1..0..0..1..0....0..1..0..0..1
..0..0..0..0..0....0..0..1..0..0....0..0..0..0..0....0..0..1..1..0
..0..0..0..0..1....0..1..1..1..0....0..1..0..0..1....0..0..0..0..0
..0..1..1..1..0....1..1..0..0..1....0..1..1..0..0....1..1..1..1..0
..1..0..1..0..1....1..1..1..1..0....1..1..0..1..1....0..1..1..1..1
CROSSREFS
Cf. A261942.
Sequence in context: A350638 A162701 A063701 * A251107 A349987 A183741
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 06 2015
STATUS
approved

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)