45936

Appears in sequences

• a(n) = n^n - n!.at n=6A036679
• Golden rectangular box numbers: a(n) = n*A007067(n)*A007067(A007067(n)).at n=22A050510
• Triangle read by rows: T(n,k) = number of functions from an n-element set into but not onto a k-element set.at n=20A101030
• Number of binary sequences of length n containing exactly one subsequence 0101.at n=17A118871
• Expansion of f(q) * f(q^5) / phi(-q^2)^2 in powers of q where f(), phi() are Ramanujan theta functions.at n=32A145722
• Least m>0 for which m + n^2 is a square and m + triangular(n) is a triangular number (A000217).at n=45A267140
• p-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = (1 - 2 S)^2.at n=10A291038
• Number of regular simple graphs on n labeled nodes.at n=7A295193
• a(n) = 4*(n+1)*(9*n+4).at n=35A304505
• Triangle read by columns: T(n,k) is the number of functions from an n-element set to a k-element set that are not one-to-one, k>=n>=1.at n=20A347034
• Number of irreducible conic curves containing 6 points of a cyclic order n-torsion subgroup of an elliptic curve.at n=28A379920
• a(n) = 10*binomial(n,5) + 4*binomial(n,3) + n.at n=16A383797