%I A037291
%S A037291 1,1,1,4,1,1,1,11,4,1,1,4,1,1,1,50,1,4,1,4,1,1,1,11,4,1,12,4,1,1,1,208,
%T A037291 1,1,1,16,1,1,1,11,1,1,1,4,4,1,1,50,4,4,1,4,1,11,1,11,1,1,1,4,1,1,4
%N A037291 Number of rings with 1 containing n elements.
%H A037291 C. Noebauer, <a href="http://www.algebra.uni-linz.ac.at/~noebsi/">Home 
               page</a>
%Y A037291 Cf. A027623, A037221.
%Y A037291 Sequence in context: A008477 A127707 A113196 this_sequence A063851 A124777 
               A112622
%Y A037291 Adjacent sequences: A037288 A037289 A037290 this_sequence A037292 A037293 
               A037294
%K A037291 nonn,nice,hard
%O A037291 1,4
%A A037291 Christian G. Bower (bowerc(AT)usa.net), Jun 15 1998.
%E A037291 a(16) and a(32)-A(63) from Christof Noebauer (christof.noebauer(AT)algebra.uni-linz.ac.at), 
               Sep 29, 2000