43455

Appears in sequences

• Least k such that prime(n)*(k^2) + prime(n)*k + 1 = m^2 = a square.at n=47A105263
• Numbers k such that 10^k - 113 is prime.at n=20A108653
• Numbers k such that (2*10^k - 23)/3 is prime.at n=20A293000