a(n) = smallest multiple of the product of next n natural numbers which is a product of consecutive numbers starting with k+1 where k = n(n+1)/2 = the n-th triangular number.

A077540

a(n) = smallest multiple of the product of next n natural numbers which is a product of consecutive numbers starting with k+1 where k = n(n+1)/2 = the n-th triangular number.