A235447 Number of (n+1) X (6+1) 0..1 arrays with the difference between each 2 X 2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.

9418, 657290, 44920240, 3043145826, 205551169550, 13868068262164, 935263088301396, 63064724124453082, 4252224342324710504, 286706640921161498010, 19331099358385310094498, 1303390076791046628378510

Offset

1,1

Comments

Column 6 of A235449.

Links

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

Example

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

Crossrefs

Cf. A235449.

Sequence in context: A143367 A234432 A235677 * A068220 A136145 A035792

Adjacent sequences: A235444 A235445 A235446 * A235448 A235449 A235450

Keyword

nonn

Author

R. H. Hardin, Jan 10 2014

Status

approved