91367

Properties

Appears in sequences

• Primes p whose period of reciprocal equals (p-1)/11.at n=26A056216
• 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=30A060110
• a(n) = |{(x_1, x_2, ... , x_n) : 1 <= x_1 <= x_2 <= ... <= x_n <= n, gcd(x_1, x_2, ... , x_n, n) = 1}|.at n=9A343565
• Lowest prime p in a ladder of 4 consecutive primes p, p+2, p+6, p+14.at n=33A372247
• Lesser of twin happy primes.at n=9A387240
• Prime numbersat n=8833