A236642 Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock

518, 5572, 59602, 642482, 6911962, 74396558, 800122550, 8610775166, 92635234654, 996776380336, 10724296947758, 115390071726274, 1241496879408954, 13357945283102960, 143722838579933174, 1546376213086175094

Offset

1,1

Comments

Column 2 of A236645

Links

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

Example

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

Crossrefs

Sequence in context: A253656 A233922 A236659 * A253726 A293085 A173791

Adjacent sequences: A236639 A236640 A236641 * A236643 A236644 A236645

Keyword

nonn

Author

R. H. Hardin, Jan 29 2014

Status

approved