A235770 Number of (n+1)X(5+1) 0..1 arrays with the sum of each 2X2 subblock two extreme terms minus its two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise

660, 5643, 47501, 377890, 2931878, 21858973, 157282139, 1084189363, 7146773223, 45042182253, 271113821758, 1563455298942, 8638261431109, 45901448960399, 234728708263457, 1159091427872949, 5532056848492928, 25589861774420059

Offset

1,1

Comments

Column 5 of A235772

Links

R. H. Hardin, Table of n, a(n) for n = 1..153

Example

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

Crossrefs

Sequence in context: A143042 A206642 A064261 * A204538 A204534 A235553

Adjacent sequences: A235767 A235768 A235769 * A235771 A235772 A235773

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved