53406

Appears in sequences

• Any number of necklaces made from n distinct colored beads then linearly arranged in a display case.at n=7A159662
• Partitions with designated summands in which no parts are multiples of 3.at n=34A293569
• a(n) = [x^n] Product_{k>=1} (1 + x^k)*(1 - x^(n*k))/((1 - x^k)*(1 + x^(n*k))).at n=27A304627