419126400

Appears in sequences

• a(n) = n*(3*n+1)*(n+2)!/24.at n=9A037960
• Number of surjections from an n-element set to a nine-element set.at n=2A133360
• Triangle read by rows: T(n,k) (n>=1, 3<=k<=n+2) is the number of k-sequences of balls colored with n colors such that exactly two balls are of a color seen previously in the sequence.at n=44A281944
• E.g.f.: exp(x^3/(x-1)).at n=12A293118
• Expansion of e.g.f. exp(x^3/(1+x)).at n=12A293121
• Number of labeled trees on n nodes with maximum degree three and three vertices of degree three.at n=3A355023