A237484 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal

8770, 180730, 3903294, 92508252, 2218452183, 54882960676, 1356262078497, 33916082423836, 845731963650019, 21196693893895575, 530121293577636045, 13289778263953793302, 332729161674389415736, 8340243441912084908931

Offset

1,1

Comments

Column 3 of A237488

Links

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

Example

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

Crossrefs

Sequence in context: A234148 A205254 A061665 * A255758 A255751 A254840

Adjacent sequences: A237481 A237482 A237483 * A237485 A237486 A237487

Keyword

nonn

Author

R. H. Hardin, Feb 08 2014

Status

approved