A235410 Number of (n+1)X(5+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise

676, 7617, 98575, 1155953, 13930916, 145005714, 1561049902, 14369333157, 137304769214, 1126706100728, 9586583045675, 70788149107317, 541231346453933, 3632414579254729, 25238718044177536, 155443564236298963

Offset

1,1

Comments

Column 5 of A235413

Links

R. H. Hardin, Table of n, a(n) for n = 1..127

Example

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

Crossrefs

Sequence in context: A253323 A281405 A204036 * A239608 A238252 A264338

Adjacent sequences: A235407 A235408 A235409 * A235411 A235412 A235413

Keyword

nonn

Author

R. H. Hardin, Jan 10 2014

Status

approved