%I #5 Mar 30 2012 17:37:18
%S 1,2,3,6,10,22,39,94,174,464,886,2610
%N Number of possible sets {{row sums},{column sums}} of an n X n+1 matrix with entries from {0,1,-1} and all row and column sums distinct.
%Y Cf. A049475, A049526.
%K nonn,hard,nice
%O 1,2
%A _Michael Kleber_