28576800

Appears in sequences

• Numerator of 1/det(M) where M is the n X n matrix with M[i,j] = 1/lcm(i,j).at n=8A060841
• Even refactorable numbers k such that the number r of odd divisors and the number s of even divisors are both odd divisors of k and k is the first number for which the triple (r,s,t) occurs, where t is the number of divisors of k.at n=34A120358
• Smallest number m having exactly n divisors d with sqrt(m/2) <= d < sqrt(2*m).at n=31A128605
• Coefficients in q-expansion of (E_2^2*E_4 - 2*E_2*E_6 + E_4^2)/1728, where E_2, E_4, E_6 are the Eisenstein series shown in A006352, A004009, A013973, respectively.at n=30A282099