A251564 Number of (n+1) X (3+1) 0..7 arrays with every 2 X 2 subblock summing to a prime.

634130, 100477236, 15941867804, 2532196250950, 402177783997408, 63887515354394210, 10148236457554340550, 1612097555345198160542, 256082560088864495392018, 40680239450040683156455136

Offset

1,1

Comments

Column 3 of A251567.

Links

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

Example

Some solutions for n=1
..0..4..0..7....2..6..2..2....0..6..0..2....2..6..6..5....0..0..1..3
..6..1..6..4....6..3..6..3....0..5..0..3....2..1..4..4....2..3..7..0

Crossrefs

Cf. A251567.

Sequence in context: A048924 A183678 A267362 * A066590 A237909 A185476

Adjacent sequences: A251561 A251562 A251563 * A251565 A251566 A251567

Keyword

nonn

Author

R. H. Hardin, Dec 04 2014

Status

approved