93518

Appears in sequences

• Number of words of length 2n generated by the two letters s and t that reduce to the identity 1 using the relations sssssss=1, tt=1 and stst=1. The generators s and t along with the three relations generate the 14-element dihedral group D7.at n=10A072266
• Number of walks of length n between two adjacent nodes in the cycle graph C_7.at n=19A094052
• The five digits of a(n) and their four successive absolute first differences are all distinct.at n=82A365257
• Cogrowth sequence for the 14-element dihedral group D7 = <S,T | S^7, T^2, (ST)^2>.at n=20A377573