708750

Appears in sequences

• Triangular array T(n,k) read by rows, giving number of labeled free trees such that the root is smaller than all its children, with respect to the number n of vertices and to the size k of the subtree rooted at the vertex labeled by 1.at n=39A071209
• a(n) = n^5 - n^4.at n=15A085538
• E.g.f. A(x) satisfies A(A(x)) = x/(1-x)^2.at n=9A091138
• Numbers whose set of base 15 digits is {0,E}, where E base 15 = 14 base 10.at n=16A097261
• Partial sums of A007202 (crystal ball sequence for hexagonal close-packing).at n=29A186707
• Number of (w,x,y,z) with all terms in {0,...,n} and max{w,x,y,z}>2*min{w,x,y,z}.at n=29A212743
• Triangle read by rows: terms T(n,k) of a binomial decomposition of 2^n-1 as Sum(k=0..n)T(n,k).at n=40A244127
• Number of nonisomorphic proper colorings of partition star graph using six colors.at n=53A297570
• a(n) = n^4 if n odd, 7*n^4/8 if n even.at n=30A309338