19399379

Properties

Appears in sequences

• Primes of the form primorial P(k)*2^n-1 with minimal n, n>=0, k>=2.at n=6A103515
• Primes of the form primorial P(k)*n-1 with minimal n, n>0, k>=2.at n=6A103783
• (Twice product of first n primes) - 1.at n=8A282704
• Smallest prime factor of A282704.at n=7A282705
• Square array A(n,k) = A276945(n,k)-1, read by descending antidiagonals: A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc.at n=47A286615
• Transpose of square array A286615.at n=52A286616
• Prime numbersat n=1234841