74089

Appears in sequences

• Strong pseudoprimes to base 11.at n=20A020237
• Strong pseudoprimes to base 41.at n=26A020267
• Strong pseudoprimes to base 42.at n=23A020268
• Strong pseudoprimes to base 87.at n=26A020313
• Semiprimes of the form k^3 + 1.at n=7A237040
• Löschian numbers (A003136) of the form k^3+1.at n=17A271185
• Number of (i,j,k) in {1,2,...,n}^3 such that gcd(n,i) = gcd(n,j) = gcd(n,k).at n=42A338997
• a(n) = Sum_{d|n} sigma(d)^3.at n=40A344044