%I A026325
%S A026325 1,1,3,7,19,51,140,386,1071,2983,8338,23376,65715,185199,523134,1480872,
%T A026325 4200411,11936619,33981063,86897759,276739029,791532973,2267119660,
%U A026325 6502108902,18671460905,53680763201,154507444731,445190930863,1284064525987
%N A026325 Number of (s(0), s(1), ..., s(n)) such that s(i) is a nonnegative integer 
               and |s(i) - s(i-1)| <= 1 for i = 1,2,...,n, s(0) = 2, s(n) = 2. Also 
               T(n,n), where T is the array in A026323.
%Y A026325 Sequence in context: A078059 A018031 A052948 this_sequence A002426 A011769 
               A087432
%Y A026325 Adjacent sequences: A026322 A026323 A026324 this_sequence A026326 A026327 
               A026328
%K A026325 nonn
%O A026325 0,3
%A A026325 Clark Kimberling (ck6(AT)evansville.edu)