83921

Properties

Appears in sequences

• Prime(k), where k divides Sum_{i=1..k} prime(i)^15.at n=6A232848
• Number of permutations in S_{2*n+3} containing the pattern 2143...(2n)(2n-1).at n=4A271648
• Numbers k such that (85*10^k - 1)/3 is prime.at n=23A289942
• a(n) is the smallest prime p such that there is a multiplicative subgroup H of Z/pZ, of odd order and of index 2n, such that for any two cosets H1 and H2 of H, H1 + H2 contains all of (Z/pZ)\0, except that H+H contains all of (Z/pZ)\0 except -H. If no such prime exists, a(n) = 0.at n=39A294615
• Prime numbersat n=8185