A251616 T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock summing to a prime

826, 14008, 14008, 237566, 583034, 237566, 4031056, 24317054, 24317054, 4031056, 68377410, 1016045742, 2500893370, 1016045742, 68377410, 1160228856, 42444702494, 258178221074, 258178221074, 42444702494, 1160228856

Offset

1,1

Comments

Table starts

......826.......14008.........237566...........4031056.............68377410

....14008......583034.......24317054........1016045742..........42444702494

...237566....24317054.....2500893370......258178221074.......26647436069688

..4031056..1016045742...258178221074....66013702120168....16881361773387422

.68377410.42444702494.26647436069688.16881361773387422.10697442429286457200

Links

R. H. Hardin, Table of n, a(n) for n = 1..60

Formula

Empirical for column k:

k=1: [linear recurrence of order 10]

k=2: [order 49]

Example

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

Crossrefs

Sequence in context: A236793 A051989 A237062 * A251611 A104375 A066946

Adjacent sequences: A251613 A251614 A251615 * A251617 A251618 A251619

Keyword

nonn,tabl

Author

R. H. Hardin, Dec 05 2014

Status

approved