A227088 Number of nX5 binary arrays indicating whether each 2X2 subblock of a larger binary array has lexicographically increasing rows and columns, for some larger (n+1)X6 binary array with rows and columns of the latter in lexicographically nondecreasing order

16, 122, 842, 5517, 34862, 210279, 1198995, 6435794, 32506602, 154792049, 697073117, 2979286263, 12129141182, 47200560835, 176145560948, 632250821238, 2188584143256, 7323870287583, 23744538586763, 74727529131117

Offset

1,1

Comments

Column 5 of A227089

Links

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

R. H. Hardin, Empirical polynomial of degree 47

Formula

Empirical polynomial of degree 47 (see link above)

Example

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

Crossrefs

Sequence in context: A191484 A030508 A006215 * A060633 A125353 A126511

Adjacent sequences: A227085 A227086 A227087 * A227089 A227090 A227091

Keyword

nonn

Author

R. H. Hardin Jun 30 2013

Status

approved