A237381 Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

27280, 455160, 7660840, 141627680, 2375768088, 39693722016, 680588692128, 12934636122240, 219580118935904, 3692772114256256, 64137636239898368, 1246751006045992448, 21365120289913813888, 360851292390185877504

Offset

1,1

Comments

Column 5 of A237384

Links

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

Formula

Empirical: a(n) = 487230*a(n-4) -96874832872*a(n-8) +10049955022453696*a(n-12) -573253988925348500864*a(n-16) +17038220734292882493998592*a(n-20) -206295313016077660067436834816*a(n-24) +5525442105707292677995972591616*a(n-28) -55027023762468144665997552386048*a(n-32) +62521104542558466945103995863040*a(n-36) for n>41

Example

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

Crossrefs

Sequence in context: A032746 A099230 A267706 * A109481 A328214 A234686

Adjacent sequences: A237378 A237379 A237380 * A237382 A237383 A237384

Keyword

nonn

Author

R. H. Hardin, Feb 07 2014

Status

approved