7440174

Appears in sequences

• a(n) = n*(n-1)^4/2.at n=28A019583
• Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*9^j.at n=34A038215
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*2^j.at n=29A038292
• Number of meaningful differential operations of the n-th order on the space R^8.at n=25A090993
• Denominator of Bernoulli(n, 1/9).at n=6A158808
• a(n) = binomial(n + 4, 4)*9^n.at n=5A173000
• Number of shapes of balanced 9-ary trees with n nodes, where a tree is balanced if the total number of nodes in subtrees corresponding to the branches of any node differ by at most one.at n=15A229394
• Triangle read by rows: T(n,k) = coefficient of [x^(n-k)] in the expansion of the polynomial (x+n)^n.at n=50A243594
• a(n) = (n+1) * 3^(n-1).at n=12A288834