84410368

Appears in sequences

• Expansion of ((1-x)/(1-2*x))^3.at n=21A058396
• Triangle read by rows: T(n,k) is the coefficient of x^k of the polynomial n(n-x)(n-2x)(n-3x)...(n-(n-1)x) (n>=1, 0<=k<=n-1).at n=30A123670
• a(n) = 4^n*A228842(n).at n=6A228843
• Triangle read by rows. T(n, k) = n^k * |Stirling1(n, k)|.at n=42A355007