1125180

Appears in sequences

• a(n) = n*(n-1)*(n-2)*(n-3)*(n^2-3*n-2)/48.at n=21A093566
• Row sums of triangle A136791.at n=9A136792
• a(n) = (5*n + 3)*(5*n + 4)*(5*n + 5)/6.at n=37A300522