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A251410 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to a prime 8
46, 238, 238, 1230, 2164, 1230, 6370, 19654, 19654, 6370, 32954, 179400, 313396, 179400, 32954, 170634, 1634286, 5037428, 5037428, 1634286, 170634, 883018, 14919346, 80717134, 143030000, 80717134, 14919346, 883018, 4571514, 136033976 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....46.......238........1230..........6370...........32954............170634

....238......2164.......19654........179400.........1634286..........14919346

...1230.....19654......313396.......5037428........80717134........1297591952

...6370....179400.....5037428.....143030000......4043668176......114835717382

..32954...1634286....80717134....4043668176....201479453052....10095883183064

.170634..14919346..1297591952..114835717382..10095883183064...893724081215818

.883018.136033976.20821486740.3252989390702.504304720898814.78814651407482114

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..144

FORMULA

Empirical for column k:

k=1: a(n) = 2*a(n-1) +21*a(n-2) -14*a(n-3) -52*a(n-4) +12*a(n-5)

k=2: [order 12]

k=3: [order 37]

EXAMPLE

Some solutions for n=2 k=4

..1..0..0..0..1....1..0..1..0..0....0..2..0..0..2....1..0..2..0..0

..0..2..1..2..2....1..1..0..2..1....0..0..1..1..2....0..1..2..1..2

..1..2..0..0..1....1..0..1..0..0....0..2..0..0..2....0..1..1..1..1

CROSSREFS

Sequence in context: A254229 A234161 A234154 * A251403 A026913 A244744

Adjacent sequences:  A251407 A251408 A251409 * A251411 A251412 A251413

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Dec 02 2014

STATUS

approved

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)