119199

Appears in sequences

• G.f. satisfies: A(x) = 1/(1 - x*A(x)/(1 - x*A(x)^2/(1 - x*A(x)^3/(1 - x*A(x)^4/(1 - ...))))), a recursive continued fraction.at n=8A192737
• List of words over {1,9} with equal numbers of 1's and 9's.at n=9A214532
• A two-digit Look-and-Say sequence starting with 99: each term summarizes the increasing two-digit substrings of the previous term.at n=2A221373