313289

Properties

Appears in sequences

• Primes of the form 10*k^2 - 1.at n=29A143828
• a(1)=1; starting with n>1, concatenate distinct divisors which are in A050376 in increasing order and repeat until a term of A050376 is reached (a(n)=0 if no term of A050376 is ever reached).at n=31A248713
• Prime numbersat n=27056