A237068 Number of (n+1)X(n+1) 0..3 arrays with the upper median of every 2X2 subblock equal

256, 51000, 53940782, 540145357880, 39085052507056252, 22189788076602239718380, 91400599993738526926922639384, 2729637406626551747794693403062699368

Offset

1,1

Comments

Diagonal of A237076

Links

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

Example

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

Crossrefs

Sequence in context: A114850 A362498 A017440 * A204302 A264096 A260865

Adjacent sequences: A237065 A237066 A237067 * A237069 A237070 A237071

Keyword

nonn

Author

R. H. Hardin, Feb 03 2014

Status

approved