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A251880 Number of (n+2)X(3+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime 1
20025, 36085, 94046, 237142, 848547, 2892699, 8113568, 29479780, 102515893, 303454217, 1103232945, 3874324883, 11951362082, 43336404358, 152949477561, 486387698163, 1758213474430, 6216858050103, 20208620436696, 72836307733722 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A251885

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A090072 A236115 A251986 * A186565 A186480 A204864

Adjacent sequences:  A251877 A251878 A251879 * A251881 A251882 A251883

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 10 2014

STATUS

approved

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Last modified June 21 05:34 EDT 2021. Contains 345355 sequences. (Running on oeis4.)