%I A026555
%S A026555 1,2,7,13,40,76,226,434,1279,2470,7267,14085,41462,80584,237484,
%T A026555 462620,1365014,2664276,7870226,15387670,45501743,89097932,263707094,
%U A026555 517058502,1531614109,3006637946,8912678569,17514547015,51952990090
%N A026555 a(n)=T(n,n-2), T given by A026552. Also a(n) = number of integer strings 
               s(0),...,s(n) counted by T, such that s(n)=2.
%Y A026555 Sequence in context: A079119 A051748 A086904 this_sequence A129592 A153136 
               A127487
%Y A026555 Adjacent sequences: A026552 A026553 A026554 this_sequence A026556 A026557 
               A026558
%K A026555 nonn
%O A026555 1,2
%A A026555 Clark Kimberling (ck6(AT)evansville.edu)