A251956 Number of (n+2)X(1+2) 0..4 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime

5484, 11375, 27550, 101307, 417045, 1957438, 10045910, 53241089, 284500818, 1525692838, 8194567198, 44035052838, 236663562577, 1272030531331, 6837186368793, 36750266853365, 197535468185882, 1061770169672789

Offset

1,1

Comments

Column 1 of A251962

Links

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

Example

Some solutions for n=4
..3..1..1....2..3..0....1..2..0....0..2..1....1..1..1....1..3..1....0..1..2
..1..1..3....3..2..0....2..3..2....1..0..1....1..1..3....1..3..1....0..2..0
..3..3..1....0..0..3....2..0..1....1..1..3....3..3..1....1..1..1....3..0..0
..1..3..3....2..1..0....3..0..0....3..1..1....1..1..1....3..1..1....2..0..3
..1..1..1....3..2..2....2..2..1....1..1..1....3..1..3....3..1..3....2..3..2
..1..1..3....0..4..1....0..0..2....1..1..1....1..3..1....1..1..1....1..4..0

Crossrefs

Sequence in context: A031572 A045108 A251962 * A232153 A203791 A137816

Adjacent sequences: A251953 A251954 A251955 * A251957 A251958 A251959

Keyword

nonn

Author

R. H. Hardin, Dec 11 2014

Status

approved