A two-digit Look-and-Say sequence starting with 13: each term summarizes the increasing two-digit substrings of the previous term.

A221369

A two-digit Look-and-Say sequence starting with 13: each term summarizes the increasing two-digit substrings of the previous term.

Terms

    a(0) =13a(1) =113a(2) =111113a(3) =411113a(4) =311113141

External references