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

4516, 89844, 1729584, 37628800, 828368064, 18660740184, 422356863016, 9600619446288, 218501534996336, 4977092897433108, 113402524526971324, 2584308275943921480, 58897151487106590856, 1342331770746402322732

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