163584

Appears in sequences

• a(n) = n*(n-1)^3*(n^2-n-1)/2.at n=9A101384
• Expansion of x^4*(1 - x)^2*(1 - 3*x^2 - 2*x^3 + x^4 - x^5)/(1 - 2*x)^3.at n=18A192886
• Number of (w,x,y,z) with all terms in {1,...,n} and w<average{x,y,z}.at n=24A212088
• a(n) = 288*n^2 - 96*n (n>=1).at n=23A305073
• Number of unlabeled loopless multigraphs with n nodes of degree 3 or less.at n=12A333894
• Array read by antidiagonals: T(n,k) is the number of permutations of k indistinguishable copies of 1..n with exactly 2 local maxima.at n=13A334773