A233945 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 4.

5874, 180972, 5601514, 176523392, 5575336614, 176443282254, 5586328225626, 176913068237196, 5603035961686288, 177460847788244822, 5620646148479558100, 178021391899030038958, 5638438079563147913958, 178585324902769571980418

Offset

1,1

Comments

Column 4 of A233949

Links

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

R. H. Hardin, Empirical recurrence of order 70

Formula

Empirical recurrence of order 70 (see link above)

Example

Some solutions for n=2
..0..1..2..2..2....2..0..2..0..0....0..2..0..2..0....1..2..2..2..2
..1..0..1..0..2....1..0..2..0..2....0..2..1..2..0....0..2..0..0..0
..0..1..0..1..1....1..2..2..0..1....0..2..0..2..1....1..1..1..2..0

Crossrefs

Sequence in context: A333232 A053340 A291597 * A264216 A061735 A251469

Adjacent sequences: A233942 A233943 A233944 * A233946 A233947 A233948

Keyword

nonn

Author

R. H. Hardin, Dec 18 2013

Status

approved