99031

Appears in sequences

• a(n) = A289671(n)/2^f(n), where f(n) = 2*floor((n-1)/3) + ((n+2) mod 3) = A004523(n).at n=48A289677
• a(n) = A289677(3*n+1).at n=16A290439
• Absolute discriminants of imaginary quadratic number fields with elementary bicyclic 5-class group (5,5).at n=35A359871