A235411 Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise

1482, 21707, 397340, 7379380, 145005714, 2573684600, 48150637857, 775525688659, 13190905086499, 190687328015653, 2907739241384590, 37858518417810848, 519021821368183677, 6140452349020498860, 76333242984438248154

Offset

1,1

Comments

Column 6 of A235413

Links

R. H. Hardin, Table of n, a(n) for n = 1..37

Example

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

Crossrefs

Sequence in context: A252366 A253324 A204037 * A238253 A035864 A255087

Adjacent sequences: A235408 A235409 A235410 * A235412 A235413 A235414

Keyword

nonn

Author

R. H. Hardin, Jan 10 2014

Status

approved