50578

Appears in sequences

• Indices of primes in the sequence defined by A(0) = 49, A(n) = 10*A(n-1) - 81 for n > 0.at n=11A101715
• Numbers k such that (47*10^k + 493)/9 is prime.at n=19A295825
• a(n) = 2*n^3 - 4*n^2 + 6*n - 2 (n>=1).at n=29A304159
• a(n) = (n + 2)*(n^2 + n - 1).at n=36A318765