75040

Appears in sequences

• The n-th highly composite number equals the a(n)-th composite number, for n >= 3.at n=28A074329
• Concatenate n and the sum of factorials of the digits of n.at n=7A109016
• Number of (n+2) X 4 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..1 introduced in row major order.at n=21A204748
• Number of subgroups of the group C_n x C_n x C_n x C_n, where C_n is the cyclic group of order n.at n=9A280162
• a(n) = 2*n^3 + 9*n^2 + 9*n.at n=32A303609