39444

Appears in sequences

• Starts for strings of at least five consecutive nonsquarefree numbers.at n=25A078144
• Number of -n..n arrays x(0..3) of 4 elements with zero sum and no two consecutive zero elements.at n=18A199531
• Number of permutations of [n] whose lengths of increasing runs are distinct factorial numbers.at n=27A317448
• Number of unlabeled series-reduced rooted trees with n nodes where the non-leaf branches directly under any given node are all equal.at n=24A320268
• a(n) is the number of ways to place non-attacking knights on a 3 X n chessboard.at n=8A321251
• Sum of the fifth largest parts of the partitions of n into 10 parts.at n=47A326594
• Numbers k such that d(k) > d(k+1) > d(k+2) > d(k+3) > d(k+4), where d(n) is the number of divisors of n.at n=3A364720