183940

Appears in sequences

• Numerator of n*(n-3)*(3*n^2-6*n+2)/(3*(n-1)*(n-2)).at n=17A023417
• a(n) = n^4 + 3*n^3 - 3*n.at n=19A192398
• Number of 2 X n 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=13A223962