86576

Appears in sequences

• Arises in the normal ordering of functions of a*(a+)*a, where a and a+ are the boson annihilation and creation operators, respectively.at n=5A123511
• The minimum possible value for the apex of a triangle of numbers whose base consists of a permutation of the numbers 0 to n, and each number in a higher row is the sum of the two numbers directly below it.at n=15A189391
• O.g.f. satisfies: A(x) = Sum_{n>=0} (n+1)^(n-1) * (n*x)^n * A(n*x)^(2*n)/n! * exp(-(n+1)*n*x*A(n*x)^2).at n=5A219220
• Number of multisets of multisets, each of odd size, whose multiset union is a size-n multiset covering an initial interval.at n=9A356933