172935

Appears in sequences

• Number of permutations of n distinct letters (ABCD...) each of which appears thrice with n-4 fixed points.at n=8A124008
• Rectangular array T(n,k) = binomial(n+1,2)*(n^k - (n-1)^k) read by antidiagonals.at n=49A178831
• a(n) = (n+1)*(n^3+15*n^2+74*n+132)/12.at n=34A217947