771120

Appears in sequences

• Triangle T_4(n, m), the number of surjective multi-valued functions from {1, 1, 1, 1, 2, 3, ..., n-3} to {1, 2, 3, ..., m} by rows (n >= 1, 1 <= m <= n).at n=53A172108
• Bell polynomial B(n,k){3,6,6,0,...,0}.at n=31A187082
• Highly composite numbers of class 2 (see comment in A275239).at n=37A275240
• Number of 2 X 2 matrices with entries in {0,1,...,n} and even trace with no entries repeated.at n=36A280056
• Triangle read by rows: T(n,k) is the number of ordered partitions of [n] into k nonempty subsets, in which the first subset has size at least 2, n >= 1 and 1 <= k <= n.at n=41A348576
• Expansion of e.g.f. 1/(1 - x * exp(x^3/6)).at n=9A358265