A251409 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a prime

883018, 136033976, 20821486740, 3252989390702, 504304720898814, 78814651407482114, 12262924928148666982, 1915023519784641199012, 298364354418489695177016, 46567310552881172277957616

Offset

1,1

Comments

Column 7 of A251410

Links

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

Example

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

Crossrefs

Sequence in context: A254394 A253982 A273036 * A128286 A250571 A092016

Adjacent sequences: A251406 A251407 A251408 * A251410 A251411 A251412

Keyword

nonn

Author

R. H. Hardin, Dec 02 2014

Status

approved