38852

Appears in sequences

• a(n)=x is the first term in chain of consecutive integers, for all of which the value of sigma[x] is divisible by 6.at n=29A097016
• a(n)=x is the first term in chain of consecutive integers, for all of which the value of sigma[x] is divisible by 6.at n=30A097016
• (2*7^n - 3*3^n + 1)/6.at n=6A109020
• Numbers k such that 5*R_k + 7*10^k + 2 is prime, where R_k = 11...11 is the repunit (A002275) of length k.at n=15A259132