124088

Appears in sequences

• Triangle T(n,k) of number of unilaterally connected digraphs on n unlabeled nodes with k arcs, k=0..n*(n-1).at n=63A057270
• Triangle T(n,k) of number of digraphs with a source and a sink on n unlabeled nodes and k arcs, k=0..n*(n-1).at n=63A057278
• McKay-Thompson series of class 24I for Monster.at n=38A058579
• McKay-Thompson series of class 24I for the Monster group with a(0) = 2.at n=38A138688
• O.g.f.: 1/(1-x) * Sum_{n>=0} 1/(1-(n+1)*x)^n * x^n/n! * exp(-x/(1-(n+1)*x)).at n=10A185040