391231

Properties

Appears in sequences

• Primes in base 10 that remain primes in seven bases b, 2<=b<=10, expansions interpreted as decimal numbers.at n=4A052027
• Prime differences of tribonacci numbers.at n=25A113239
• Primes of the form prime(i)*prime(i+1) + prime(i+2) + 1.at n=30A180945
• Tribonacci-like sequence a(n) = a(n-1) + a(n-2) + a(n-3) for n >= 3, with a(0) = 1, a(1) = 2, a(2) = 1.at n=22A275778
• Prime numbersat n=33168