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A181266 T(n,k)=Number of nXk binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order 8

%I #3 Mar 31 2012 12:35:49

%S 2,4,1,8,2,0,16,11,0,0,32,44,6,0,0,64,188,87,4,0,0,128,752,730,111,1,

%T 0,0,256,3056,6236,1793,66,0,0,0,512,12224,49400,32124,2607,24,0,0,0,

%U 1024,49088,398032,513260,108161,2575,5,0,0,0,2048,196352,3162528,8397376

%N T(n,k)=Number of nXk binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order

%C Table starts

%C .2.4..8..16...32.....64.......128........256.........512.........1024

%C .1.2.11..44..188....752......3056......12224.......49088.......196352

%C .0.0..6..87..730...6236.....49400.....398032.....3162528.....25293504

%C .0.0..4.111.1793..32124....513260....8397376...133979600...2151884352

%C .0.0..1..66.2607.108161...3610319..120854852..3883975540.125298805600

%C .0.0..0..24.2575.256746..17946611.1225897310.79509209528.............

%C .0.0..0...5.1790.428573..63961223.9014442178.........................

%C .0.0..0...1..896.520349.167427191....................................

%C .0.0..0...0..296.480849..............................................

%C .0.0..0...0...55.....................................................

%H R. H. Hardin, <a href="/A181266/b181266.txt">Table of n, a(n) for n=1..108</a>

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Oct 10 2010

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)