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A251881 Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime 1
49529, 100787, 237142, 1036785, 4243461, 14269266, 64083601, 266275459, 902777675, 4085369642, 17034771641, 57889402251, 262673853730, 1096504899687, 3730444680839, 16939960843116, 70745310139665, 240883260471212 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A251885

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A251026 A210351 A234563 * A187856 A258320 A258131

Adjacent sequences:  A251878 A251879 A251880 * A251882 A251883 A251884

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 10 2014

STATUS

approved

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Last modified October 28 03:12 EDT 2021. Contains 348308 sequences. (Running on oeis4.)