%I A055463
%S A055463 0,1,2,4,13,98,2536,497017,2520869930,2505830419990012,
%T A055463 12633745110864184300787269,63316045634407119326463714272245870904666,
%U A055463 1599837563945889048330164752080268110156603845860584259478831024272
%N A055463 a(n) = a(n-1)*2*a(n-2)-3*a(n-3)
%Y A055463 Sequence in context: A139149 A132786 A103845 this_sequence A091957 A056678 
               A092665
%Y A055463 Adjacent sequences: A055460 A055461 A055462 this_sequence A055464 A055465 
               A055466
%K A055463 easy,nonn
%O A055463 0,3
%A A055463 Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 05 2000