39409

Properties

Appears in sequences

• Convolution of positive integers n with Lucas numbers L(k)(A000032) for k >= 4.at n=14A033814
• Primes p giving prime quadruples (30p+11, 30p+13, 30p+17, 30p+19).at n=19A087771
• Positive numbers y such that y^2 is of the form x^2+(x+2401)^2 with integer x.at n=19A157247
• Least prime p such that B_{2*n} == 0 (mod p) but there is no k < n with B_{2k} == 0 (mod p), or 1 if such a prime p does not exist, where B_m denotes the m-th Bernoulli number.at n=26A242193
• Least prime divisor of the n-th tangent number T_n which does not divide any T_k with k < n, or 1 if such a primitive prime divisor of T_n does not exist.at n=26A242195
• Numbers k such that (17*10^k + 31)/3 is prime.at n=24A280381
• Smallest prime factor of |A001067(n)|, or 1 if |A001067(n)| = 1.at n=26A281331
• Primes in A301916 but not in A045318.at n=40A320481
• The least prime factor of the numerator of Bernoulli(2*n), or 1 if the numerator is 1.at n=27A332300
• Prime numbersat n=4149