A206508 Number of (n+1)X5 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards

19797, 1020756, 41873838, 1483188648, 47830788954, 1444445274765, 41561685861258, 1152430341911256, 31037137973162439, 816543046767301710, 21075169065968338644, 535422905459574902352, 13424260728041018703732

Offset

1,1

Comments

Column 4 of A206512

Links

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

Example

Some solutions for n=4
..2..1..2..1..0....2..2..0..0..1....2..1..2..2..2....1..0..2..0..1
..1..2..1..2..1....1..2..0..1..2....2..1..1..1..1....2..0..1..0..2
..1..0..2..0..2....1..2..2..0..0....0..0..0..0..1....2..1..2..1..0
..2..1..0..1..0....0..1..0..2..1....1..1..0..2..1....0..2..0..2..1
..0..2..1..2..1....1..2..1..0..2....2..1..1..1..0....1..0..1..0..2

Crossrefs

Sequence in context: A253454 A237096 A252206 * A206058 A236497 A194197

Adjacent sequences: A206505 A206506 A206507 * A206509 A206510 A206511

Keyword

nonn

Author

R. H. Hardin Feb 08 2012

Status

approved