%I A055802
%S A055802 1,1,1,2,3,4,6,7,10,11,15,16,21,22,28,29,36,37,45,46,55,56,66,67,78,79,
%T A055802 91,92,105,106,120,121,136,137,153,154,171,172,190,191,210,211,231,232,
%U A055802 253,254,276,277,300,301,325,326,351,352
%N A055802 T(n,n-2), array T as in A055801.
%C A055802 For n>2, a(n)+a(n+1) seems to be A002620(n+1)+1.
%F A055802 G.f.: x^2(-x^5+2x^4+x^3-2x^2+1)/[(1-x)(1-x^2)^2].
%Y A055802 Sequence in context: A047518 A120440 A049995 this_sequence A114220 A134519 
               A101505
%Y A055802 Adjacent sequences: A055799 A055800 A055801 this_sequence A055803 A055804 
               A055805
%K A055802 nonn
%O A055802 2,4
%A A055802 Clark Kimberling (ck6(AT)evansville.edu), May 28 2000