Largest order of element in direct product S_n * S_n where S_n is the symmetric group.

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =12a(5) =30a(6) =30a(7) =84a(8) =120a(9) =210a(10) =420a(11) =420a(12) =840a(13) =1260a(14) =2310a(15) =4620a(16) =5460a(17) =5460a(18) =13860a(19) =13860a(20) =27720a(21) =32760a(22) =60060a(23) =60060a(24) =120120a(25) =180180a(26) =180180a(27) =360360a(28) =360360a(29) =510510