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A180997 T(n,k)=number of nXk binary matrices with rows and columns each in strictly increasing order as binary numbers and no 1 neighboring another 1 3
2, 1, 1, 0, 2, 0, 0, 1, 1, 0, 0, 0, 3, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 5, 5, 0, 0, 0, 0, 0, 0, 0, 26, 0, 0, 0, 0, 0, 0, 0, 0, 21, 21, 0, 0, 0, 0, 0, 0, 0, 0, 0, 145, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 124, 124, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1269, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1145 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.2.1.0.0..0...0....0.....0......0........0.........0...........0.............0

.1.2.1.0..0...0....0.....0......0........0.........0...........0.............0

.0.1.3.2..0...0....0.....0......0........0.........0...........0.............0

.0.0.2.7..5...0....0.....0......0........0.........0...........0.............0

.0.0.0.5.26..21....0.....0......0........0.........0...........0.............0

.0.0.0.0.21.145..124.....0......0........0.........0...........0.............0

.0.0.0.0..0.124.1269..1145......0........0.........0...........0.............0

.0.0.0.0..0...0.1145.16666..15521........0.........0...........0.............0

.0.0.0.0..0...0....0.15521.336209...320688.........0...........0.............0

.0.0.0.0..0...0....0.....0.320688.10197321...9876633...........0.............0

.0.0.0.0..0...0....0.....0......0..9876633.469338906...459462273.............0

.0.0.0.0..0...0....0.....0......0........0.459462273.32492055785...32032593512

.0.0.0.0..0...0....0.....0......0........0.........0.32032593512.3394528588557

.0.0.0.0..0...0....0.....0......0........0.........0...........0.3362495995045

.0.0.0.0..0...0....0.....0......0........0.........0...........0.............0

LINKS

R. H. Hardin, Table of n, a(n) for n=1..1200

CROSSREFS

Sequence in context: A275784 A097608 A168261 * A143439 A105469 A257857

Adjacent sequences:  A180994 A180995 A180996 * A180998 A180999 A181000

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Sep 30 2010

STATUS

approved

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Last modified February 19 16:02 EST 2019. Contains 320311 sequences. (Running on oeis4.)