A237311 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal

7398, 120650, 1928204, 33313192, 564748168, 9923274434, 171975075815, 3048207305436, 53496852362572, 954253356186506, 16899638107089319, 303052582868946042, 5405825916182428737, 97385557953332387791

Offset

1,1

Comments

Column 3 of A237315

Links

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

Example

Some solutions for n=2
..3..0..0..3....0..1..2..2....2..0..1..2....2..1..2..3....2..2..1..0
..3..0..3..0....2..3..3..1....1..1..2..2....3..3..3..3....1..3..3..2
..1..0..3..0....3..1..0..3....1..3..1..2....3..2..1..2....2..0..1..0

Crossrefs

Sequence in context: A364182 A034279 A031584 * A023940 A116195 A249878

Adjacent sequences: A237308 A237309 A237310 * A237312 A237313 A237314

Keyword

nonn

Author

R. H. Hardin, Feb 06 2014

Status

approved