139867

Appears in sequences

• Number of base-2 palindromic primes (A016041) in range [2^2n,2^(2n+1)].at n=20A095741
• Number of palindromic primes in base 2 with exactly n binary digits.at n=42A117773
• Composite squarefree numbers n such that p(i)-5 divides n+5, where p(i) are the prime factors of n.at n=27A225705
• Composite squarefree numbers n such that p(i)+7 divides n-7, where p(i) are the prime factors of n.at n=16A225717