1894815

Appears in sequences

• a(n) = Sum_{0<j<k<=n} k^3-j^3.at n=24A206809
• Let d(n,k) be the n-th divisor of a number k. a(n) is the smallest k such that d(n+1,k+1) = d(n,k) + 1.at n=20A285883