A236586 Number of (n+1)X(2+1) 0..3 arrays colored with the maximum plus the upper median minus the minimum of every 2X2 subblock

2858, 69766, 1705350, 41837888, 1023837022, 25082040726, 614719795538, 15061957042208, 368984741438528, 9040188025088446, 221496964287626690, 5426833925012460956, 132959147964541859240, 3257567810561282025784

Offset

1,1

Comments

Column 2 of A236588

Links

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

Example

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

Crossrefs

Sequence in context: A067703 A253714 A031603 * A233379 A192087 A286007

Adjacent sequences: A236583 A236584 A236585 * A236587 A236588 A236589

Keyword

nonn

Author

R. H. Hardin, Jan 29 2014

Status

approved