Number of 6-cycles in the n-odd graph.

Terms

a(0) =0a(1) =0a(2) =10a(3) =105a(4) =840a(5) =5775a(6) =36036a(7) =210210a(8) =1166880a(9) =6235515a(10) =32332300a(11) =163601438a(12) =811246800a(13) =3954828150a(14) =19001896200a(15) =90162058500a(16) =423160594560