%I A077837
%S A077837 1,2,9,35,136,531,2071,8078,31509,122903,479392,1869903,7293691,28449566,
%T A077837 110969577,432844811,1688342296,6585500475,25687217935,100194839822,390817174221,
%U A077837 1524410477999,5946072636304,23193083691351,90466289938963,352870266163550
%N A077837 Expansion of (1-x)/(1-3*x-3*x^2-2*x^3).
%Y A077837 Sequence in context: A001571 A092431 A147762 this_sequence A150945 A150946 
               A150947
%Y A077837 Adjacent sequences: A077834 A077835 A077836 this_sequence A077838 A077839 
               A077840
%K A077837 nonn
%O A077837 0,2
%A A077837 N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002