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A261938
Number of (n+1)X(3+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
10, 61, 218, 1878, 9350, 57243, 352480, 2438528, 15405064, 102528319, 707008477
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A261942.
LINKS
Table of n, a(n) for n=1..11.
EXAMPLE
Some solutions for n=4
..0..0..0..1....1..0..0..1....0..1..0..0....1..0..1..0....1..0..0..1
..0..1..1..0....0..0..0..0....0..0..0..0....1..0..0..1....1..1..0..0
..1..0..0..0....0..1..1..0....0..1..1..0....1..0..1..0....1..0..1..0
..0..1..1..0....1..0..0..1....1..1..1..1....1..1..1..1....1..1..1..0
..1..1..1..1....1..1..1..1....0..1..1..0....1..1..1..1....1..1..1..1
CROSSREFS
Cf. A261942.
Sequence in context: A354944 A041184 A089034 * A361535 A271790 A319965
Adjacent sequences: A261935 A261936 A261937 * A261939 A261940 A261941
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 06 2015
STATUS
approved

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Last modified October 5 04:35 EDT 2024. Contains 376530 sequences.
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