47049

Appears in sequences

• Triangle T(n,k) of number of strongly connected digraphs on n unlabeled nodes and with k arcs, k=0..n*(n-1).at n=57A057276
• Number of ways of making change for n cents using coins of sizes 1, 2, 5, 10 cents, when order matters.at n=21A073031
• Number of complete necklace compositions of n.at n=19A325786
• a(n) is equal to the last point of a reverse pyramid summation with base 1, 2, 3, ..., n-2, n-1, n, n-1, n-2, ..., 3, 2, 1.at n=8A359087
• Triangle read by rows where row n is the largest (or middle or n-th) column of the reverse pyramid summation of order n described in A359087.at n=44A360145
• a(n) = n! * Sum_{d|n} 1/((d-1)! * (n/d)^d).at n=8A370604