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%I #1 Jun 29 2008 03:00:00
%S 1,248,3975,29104,119405,436818,1105537,2790818,5902335,12074356
%N Number of 3 X 3 singular integer matrices with elements from {1,...,n}.
%K nonn
%O 1,2
%A Graziano Aglietti (mg5055(AT)mclink.it), Feb 11 2008