86387

Appears in sequences

• Numbers of the form 49*k, where 49*k+2 and 49*k-6 are both prime.at n=30A153779
• Numbers 41*k such that 41*k+2 and 41*k-6 are both prime.at n=26A153822
• S_13 sequence in partition of integers > 1 described in A240521.at n=16A241025
• Number x such that usigma(x) = (-1)sigma(x), where usigma(x) is the sum of unitary divisors of x (A034448) and (-1)sigma(x) is defined in A049060 .at n=8A258101