Minimum crossing number at which there are n torus knots.

Terms

a(0) =1a(1) =3a(2) =15a(3) =63a(4) =189a(5) =432a(6) =792a(7) =1232a(8) =1584a(9) =2880a(10) =4320a(11) =5040a(12) =6336a(13) =7920a(14) =12096a(15) =15120a(16) =19008a(17) =22176a(18) =30240a(19) =33264a(20) =43200a(21) =47520a(22) =44352a(23) =65520a(24) =75600a(25) =108000a(26) =90720a(27) =120960a(28) =168480a(29) =131040