53564

Appears in sequences

• Indices of triple-safe primes: p=prime(n) is double-safe: q=(p-1)/2, r=(q-1)/2 and s=(r-1)/2 are all prime (and q is double-safe).at n=34A075134
• Number of (n+1) X (4+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.at n=5A261757
• Number of (n+1) X (6+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.at n=3A261759
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.at n=39A261761
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.at n=41A261761
• Row 4 of array in A265080.at n=14A265081