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

20025, 36085, 94046, 237142, 848547, 2892699, 8113568, 29479780, 102515893, 303454217, 1103232945, 3874324883, 11951362082, 43336404358, 152949477561, 486387698163, 1758213474430, 6216858050103, 20208620436696, 72836307733722

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