A236815 Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal

4627, 66853, 956456, 14757359, 230126265, 3697318630, 60011383119, 987175371637, 16341810901082, 272220635630305, 4550173897917093, 76282741176721868, 1281112106487025787, 21546122287223223153

Offset

1,1

Comments

Column 4 of A236819

Links

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

Example

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

Crossrefs

Sequence in context: A254850 A139410 A031566 * A343637 A233855 A068268

Adjacent sequences: A236812 A236813 A236814 * A236816 A236817 A236818

Keyword

nonn

Author

R. H. Hardin, Jan 31 2014

Status

approved