A227102 Number of nX5 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X6 binary array having a sum of two, with rows and columns of the latter in lexicographically nondecreasing order

16, 341, 4444, 60039, 754758, 8638999, 89104481, 828893716, 6983821643, 53621106874, 377769331391, 2459320959398, 14894188221320, 84433809668941, 450539327678840, 2274144315956048, 10906260377874097, 49886929929379557

Offset

1,1

Comments

Column 5 of A227103

Links

R. H. Hardin, Table of n, a(n) for n = 1..46

Example

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

Crossrefs

Sequence in context: A318013 A320399 A173906 * A221577 A363383 A136269

Adjacent sequences: A227099 A227100 A227101 * A227103 A227104 A227105

Keyword

nonn

Author

R. H. Hardin Jul 01 2013

Status

approved