97820

Appears in sequences

• Numbers in Morse code, with 1 for a dot, 2 for a dash and 0 between digits/letters and then converted from base 3 to base 10.at n=22A060110
• Monotonic ordering of set S generated by these rules: if x and y are in S then 3xy-x-y is in S, and 2 is in S.at n=27A192529