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A234428 T(n,k)=Number of (n+1)X(k+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14 and no adjacent elements equal 5
448, 4516, 4516, 44140, 89844, 44140, 453728, 1729584, 1729584, 453728, 4641220, 37628800, 58371648, 37628800, 4641220, 47946684, 828368064, 2539059832, 2539059832, 828368064, 47946684, 494928936, 18660740184, 109799236808 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......448.........4516...........44140.............453728.............4641220

......4516........89844.........1729584...........37628800...........828368064

.....44140......1729584........58371648.........2539059832........109799236808

....453728.....37628800......2539059832.......246163893400......23699592729240

...4641220....828368064....109799236808.....23699592729240....4893587565262048

..47946684..18660740184...5083291722008...2541252995824388.1189817781122853232

.494928936.422356863016.236294724920980.274279786722927952

LINKS

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

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 12]

k=2: [order 68]

EXAMPLE

Some solutions for n=2 k=4

..2..7..1..7..0....4..7..6..1..3....4..7..4..7..1....4..7..3..1..6

..0..1..0..4..2....0..1..7..0..7....0..1..0..4..0....0..1..0..5..3

..2..7..3..0..5....2..7..6..3..4....2..7..4..7..6....2..7..1..7..0

CROSSREFS

Sequence in context: A194648 A234438 A048632 * A234424 A234175 A234170

Adjacent sequences:  A234425 A234426 A234427 * A234429 A234430 A234431

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Dec 25 2013

STATUS

approved

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Last modified August 14 13:40 EDT 2020. Contains 336480 sequences. (Running on oeis4.)