22830

Appears in sequences

• a(n) = 60*n^2 + 180*n + 150.at n=17A069477
• Third differences of fifth powers (A000584).at n=20A101096
• Let m = n-th squarefree number = A005117(n), and consider the smallest pair of consecutive squarefree numbers (r,s) with gcd(r,s) = m; sequence gives values of r.at n=3A109473
• Consider the smallest pair of consecutive squarefree numbers (r,s) with gcd(r,s) = n; sequence gives values of r, or -1 if n is not squarefree.at n=4A109505