104721
domain: N
Appears in sequences
- Strong pseudoprimes to base 5.at n=18A020231
- a(n) = n^4 - 15*n + 15.at n=17A107253
- Base-5 Euler-Jacobi pseudoprimes: odd composite k coprime to 5 such that 5^((k-1)/2) == (5/k) (mod n), where (5/k) is the Jacobi symbol (or Kronecker symbol).at n=30A375914
- Composite numbers k == 1, 9 (mod 10) such that 5^((k-1)/2) == 1 (mod k).at n=29A375915