34857

Appears in sequences

• Numbers k such that 7*2^k - 1 is prime.at n=12A001771
• a(n) = 3^n mod n^3.at n=36A066607
• a(n) is the smallest number such that a(n)*n is an anagram of a(n)*5.at n=24A175694
• a(n) = Sum_{k=0..n}C(n,k)^2*C(2k,k)/(2k-1), where C(n,k) denotes the binomial coefficient n!/(k!*(n-k)!).at n=7A246065
• Numbers k such that (26*10^k + 49)/3 is prime.at n=23A282536