5913600

Appears in sequences

• a(n) = the largest divisor of n! such that (sum{k=1 to n} a(k)) is a divisor of n!.at n=11A156832
• a(n) = (3*n)!/3^n.at n=4A210277
• Number of permutations of [1..n] that achieve a lower bound on the dominating set.at n=11A272641
• E.g.f.: Product_{k>=1} 1/(1 - x^(4*k-1)/(4*k-1)).at n=12A326779
• Irregular triangle (an infinite binary tree) read by rows. The tree has root node 1 in row n = 1. For n > 1, each node with value m in row n-1 has a left child with value m / n if n divides m, and a right child with value m * n.at n=47A360298
• Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(4*k+3) / (4*k+3) ).at n=12A365981
• Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(5*k+3) / (5*k+3) ).at n=12A365982