%I #10 Mar 30 2012 16:47:28

%S 1,1,1,1,2,1,1,3,3,1,1,4,6,4,1,1,6,12,11,5,1,1,7,20,26,17,6,1,1,9,33,

%T 58,52,25,7,1,1,11,52,121,146,95,35,8,1,1,13,78,240,388,334,162,47,9,

%U 1,1,15,113,454,975,1123,710,262,61,10,1,1,18,163,835,2365

%N Triangle read by rows: T(n,k) = number of loopless, regular k X n-matrix matroids of dimension k (or n-matroids of rank k).

%D Computed by Harald Fripertinger (fripert(AT)kfunigraz.ac.at).

%H H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a>

%H <a href="/index/Coa#codes_binary_linear">Index entries for sequences related to binary linear codes</a>

%H <a href="/index/Mat#matroid">Index entries for sequences related to matroids</a>

%e 1; 1,1; 1,2,1; 1,3,3,1; 1,4,6,4,1; 1,6,12,11,5,1; 1,7,20,26,17,6,1; ...

%Y Cf. A034356, A034327.

%K nonn,tabl

%O 0,5

%A _N. J. A. Sloane_.

%E Description corrected by Harald Fripertinger, Nov 14 2007