81608

Appears in sequences

• Least number k such that k has n anti-divisors.at n=42A066464
• Members of A143610 for which both neighbors are squarefree.at n=22A166987
• Number of (n+2) X (1+2) 0..1 arrays with no 3 x 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=23A257440
• Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and with no two consecutive increases or two consecutive decreases.at n=13A263662
• Sum of the even singletons in all partitions of n (n>=0). A singleton in a partition is a part that occurs exactly once.at n=33A276425