login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A252036 Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime 1
112929, 183494, 85570, 242893, 958171, 3353508, 10165927, 43093018, 160833703, 479755164, 2129630164, 8304035822, 24338771563, 112393455254, 453850241919, 1310003801065, 6253138371548, 25945878433273, 74044064461017 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A252039

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..1..1..4..1..1..2....4..0..4..4..0..4....4..3..3..4..1..3....3..3..4..3..3..4

..3..1..2..1..1..4....1..2..1..1..2..3....4..3..1..4..3..1....0..0..1..0..0..1

..2..2..0..2..2..0....1..2..1..1..2..1....1..0..0..1..0..0....3..3..4..3..3..4

..3..1..2..1..1..2....2..0..2..2..0..4....4..3..3..4..3..3....3..3..4..3..1..4

..1..3..4..1..1..2....1..4..1..1..2..1....4..3..3..4..1..1....0..0..1..0..0..1

CROSSREFS

Sequence in context: A269766 A177275 A303999 * A103113 A179922 A122511

Adjacent sequences:  A252033 A252034 A252035 * A252037 A252038 A252039

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 12 2014

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 30 07:18 EDT 2021. Contains 346348 sequences. (Running on oeis4.)