164981

Appears in sequences

• n*10^5-1, n*10^5-3, n*10^5-7 and n*10^5-9 are all prime.at n=22A064979
• a(n) is the smallest number k such that four consecutive prime numbers prime(n), prime(n+1), prime(n+2) and prime(n+3) are divisors of k, k+1, k+2 and k+3 respectively.at n=9A180096