A234400 Number of (n+1)X(1+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12

432, 5646, 66806, 829594, 10158894, 125160846, 1539127906, 18941648974, 233051484674, 2867671002026, 35285174854854, 434171029131638, 5342290306236582, 65734726289230182, 808838805043145334

Offset

1,1

Comments

Column 1 of A234405

Links

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

Formula

Empirical: a(n) = 13*a(n-1) +33*a(n-2) -544*a(n-3) -162*a(n-4) +7372*a(n-5) -2717*a(n-6) -33870*a(n-7) +18799*a(n-8) +19183*a(n-9) -2790*a(n-10) -1716*a(n-11)

Example

Some solutions for n=3
..6..0....3..3....0..1....4..2....2..0....4..6....2..3....0..6....3..2....3..4
..4..0....0..6....4..6....2..6....6..6....3..0....5..0....0..5....6..0....5..0
..6..2....2..6....1..0....0..3....0..2....0..3....5..6....2..6....1..0....6..2
..0..1....0..4....3..6....6..3....2..6....5..2....5..0....2..0....3..6....0..1

Crossrefs

Sequence in context: A235418 A235422 A234405 * A236279 A223595 A223436

Adjacent sequences: A234397 A234398 A234399 * A234401 A234402 A234403

Keyword

nonn

Author

R. H. Hardin, Dec 25 2013

Status

approved