117216

Appears in sequences

• Number of diagonal dissections of an n-gon into 3 regions.at n=32A033275
• a(n) = n*(n + 1)*(5*n - 4)/2.at n=36A237616
• a(n) = (n-1)*(n-2)*(n+3)*(n+2)/12.at n=34A299120
• Numbers that have exactly 7 representations as a k-gonal number, P(n,k) = n*((k-2)*n - (k-4))/2, k and n >= 3.at n=22A321157