280041

Appears in sequences

• Product of n^2 and n-th tetrahedral number: a(n) = n^3*(n+1)*(n+2)/6.at n=17A119771
• Number of (w,x,y,z) with all terms in {1,...,n} and w>=2x and y<3z.at n=34A212520
• Composite numbers m such that tau_k(m) = m for some k, where tau_k is the k-th Piltz divisor function (A077592).at n=21A327774