30432

Appears in sequences

• Square root of A030693.at n=20A030694
• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 87.at n=40A031585
• Numbers n such that sum k/d(k) is an integer, where d(k) is the k-th divisor of n (the divisors of n are in decreasing order).at n=7A073083
• Number of right triangles on a (n+1)X8 grid.at n=16A189812
• Smallest number k such that k^2 begins with n^3.at n=20A197722
• Triangle of coefficients of polynomials v(n,x) jointly generated with A209133; see the Formula section.at n=52A209134
• a(n) = A259708(n,n-1).at n=11A259709
• Numbers k such that k*A001414(k)+1 is the square of a prime.at n=27A343141