32066

Appears in sequences

• Number of rooted planar trees with n non-root nodes: circularly cycling the subtrees at the root gives equivalent trees.at n=11A003239
• Number of 3's in n-th term of A022482.at n=40A022486
• Number of necklaces with 11 black beads and n-11 white beads.at n=11A032196
• Number of terms in polynomial expression for determinant of generic circulant matrix of order n.at n=10A084575
• Triangle, read by rows, of the limit of coefficients of q in {[x^m] W(x,q)} as m grows when arranged into a triangle where row n is multiplied by n! for n>=1.at n=18A126343
• Number of n-element subsets of {1,2,...,2n-1} whose elements sum to a multiple of n.at n=10A145855
• Number of elements in the mutation class of a quiver of type D_n.at n=8A159557
• a(n) = ceiling(binomial(2*n-1,n-1)/n).at n=10A188669
• Number of (w,x,y,z) with all terms in {1,...,n} and w*x>y*z+1.at n=16A212054
• Minimal natural number (in decimal representation) with n prime substrings in base-3 representation (substrings with leading zeros are considered to be nonprime).at n=26A217303
• Table array: T(n,k) is Ann_k(2*n+k,k) where Ann_k(n,m) is the number of annular non-crossing matchings of type (n, m) with precisely k cross-cuts.at n=77A267998