login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A261946 Number of (4+1)X(n+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, 12, 1878, 7943, 351513, 3016874, 64650845, 773758878, 10301327801 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 4 of A261942.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0..0....0..1..0..0..0....1..0..1..0..0....0..0..1..1..0
..0..1..1..0..0....0..1..0..1..0....0..1..0..0..0....0..0..0..0..0
..1..0..1..0..0....0..1..0..0..1....0..1..0..1..0....0..1..0..0..0
..1..1..0..1..1....1..1..1..1..0....1..0..1..0..1....1..1..0..1..1
..1..1..1..0..0....1..1..0..1..1....1..1..1..1..0....1..1..1..1..0
CROSSREFS
Cf. A261942.
Sequence in context: A049405 A229752 A104009 * A015028 A167745 A326601
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 06 2015
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 4 09:05 EST 2024. Contains 370528 sequences. (Running on oeis4.)