3937500

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*3^j.at n=38A038245
• a(n) = (n^3 + n^2)*5^n.at n=6A129005
• Number of permutations of n elements divided by the number of quaternary heaps on n+1 elements.at n=37A273732
• a(n) = A276086(n) * A276086(sigma(n)-n), where A276086 is the primorial base exp-function, and sigma is the sum of divisors function.at n=50A388282