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A234425 Number of (n+1)X(2+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 1
4516, 89844, 1729584, 37628800, 828368064, 18660740184, 422356863016, 9600619446288, 218501534996336, 4977092897433108, 113402524526971324, 2584308275943921480, 58897151487106590856, 1342331770746402322732 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A234428

LINKS

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

R. H. Hardin, Empirical recurrence of order 68

FORMULA

Empirical recurrence of order 68 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A023684 A105845 A107543 * A209955 A104845 A235852

Adjacent sequences:  A234422 A234423 A234424 * A234426 A234427 A234428

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 25 2013

STATUS

approved

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Last modified August 14 13:43 EDT 2020. Contains 336481 sequences. (Running on oeis4.)