A235515 Number of (n+1)X(6+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise

9476, 666171, 45985647, 3125826729, 211711499238, 14296989785082, 964746982342868, 65065872525488729, 4387633422360648409, 295847725470912694540, 19947812616937982823327, 1344980206107516471207628

Offset

1,1

Comments

Column 6 of A235517

Links

R. H. Hardin, Table of n, a(n) for n = 1..107

Example

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

Crossrefs

Sequence in context: A202099 A209854 A235734 * A161726 A110076 A204722

Adjacent sequences: A235512 A235513 A235514 * A235516 A235517 A235518

Keyword

nonn

Author

R. H. Hardin, Jan 11 2014

Status

approved