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A251474 T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock summing to a prime 7
458, 5896, 5896, 75962, 167554, 75962, 979132, 4789458, 4789458, 979132, 12620130, 137223466, 305835002, 137223466, 12620130, 162672044, 3932396176, 19627202794, 19627202794, 3932396176, 162672044, 2096768998, 112715450380, 1260430729632 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......458.........5896..........75962............979132.............12620130

......5896.......167554........4789458.........137223466...........3932396176

.....75962......4789458......305835002.......19627202794........1260430729632

....979132....137223466....19627202794.....2830218950082......408635929747162

..12620130...3932396176..1260430729632...408635929747162...132738273844782290

.162672044.112715450380.80982143877530.59049118022243816.43169937494954605912

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 10]

k=2: [order 45]

EXAMPLE

Some solutions for n=2 k=4

..0..3..3..0..0....0..0..0..0..3....0..3..0..0..3....0..0..3..0..3

..0..2..5..3..2....0..2..3..0..4....0..0..2..0..2....3..2..0..0..0

..3..2..4..5..1....0..1..5..3..4....3..2..3..2..3....0..0..3..4..3

CROSSREFS

Sequence in context: A341186 A252407 A252408 * A251468 A098765 A286845

Adjacent sequences:  A251471 A251472 A251473 * A251475 A251476 A251477

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Dec 02 2014

STATUS

approved

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Last modified January 22 19:45 EST 2022. Contains 350504 sequences. (Running on oeis4.)