options ls=80;


data ttable;
 do n=1 to 500 by 1;
   f=tinv(0.75,n);
   e=tinv(0.90,n);
   a=tinv(0.950,n);
   b=tinv(0.975,n);
   c=tinv(0.990,n);
   d=tinv(0.995,n);
   output;
 end;

;
data ttable;set ttable;
label   f= 't(0.25)'
        e= 't(0.10)'
        a= 't(0.050)'
        b= 't(0.025)'
        c= 't(0.010)'
        d= 't(0.005)'
        n= 'd.f.';

proc print data=ttable label ;
run;