A236502 Number of (n+1)X(2+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock

2632, 54110, 1116232, 23079872, 477377520, 9873995570, 204198122306, 4223027031732, 87339575230936, 1806323755758326, 37357297328973780, 772603063672305092, 15978596275763710970, 330461206445442937362

Offset

1,1

Comments

Column 2 of A236505

Links

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

Example

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

Crossrefs

Sequence in context: A254776 A254769 A254722 * A212605 A273184 A252579

Adjacent sequences: A236499 A236500 A236501 * A236503 A236504 A236505

Keyword

nonn

Author

R. H. Hardin, Jan 27 2014

Status

approved