A237059 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock equal

81, 1101, 32336, 2913981, 541432879, 390167013602, 355265497657777, 2026030232809865339, 8046892555460085940346

Offset

1,1

Comments

Diagonal of A237067

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A236047 A264000 A236781 * A374144 A236010 A230677

Adjacent sequences: A237056 A237057 A237058 * A237060 A237061 A237062

Keyword

nonn

Author

R. H. Hardin, Feb 03 2014

Status

approved