999989991

Appears in sequences

• Number of aperiodic necklaces of n beads of 10 colors.at n=9A032165
• Number of Lyndon words (aperiodic necklaces) with n beads of n colors.at n=9A075147
• Number of length n primitive (=aperiodic or period n) 10-ary words which are earlier in lexicographic order than any other word derived by cyclic shifts of the alphabet.at n=9A320075