1707552

Appears in sequences

• Norm of coefficients in g.f. C(x) that satisfies: C(x) = 1 + x/C(I*x).at n=27A193384
• Powerful numbers (A001694) whose sum of powerful divisors (including 1) is also powerful.at n=21A349109
• a(n) is the least number with exactly n divisors of the form 5*k+3.at n=39A364599
• a(n) is the least number with exactly n divisors of the form 5*k+4.at n=39A364600