Exponent of the group SL(2, Z_n).

Terms

a(0) =1a(1) =6a(2) =12a(3) =12a(4) =60a(5) =12a(6) =168a(7) =24a(8) =36a(9) =60a(10) =660a(11) =12a(12) =1092a(13) =168a(14) =60a(15) =48a(16) =2448a(17) =36a(18) =3420a(19) =60a(20) =168a(21) =660a(22) =6072a(23) =24a(24) =300a(25) =1092a(26) =108a(27) =168a(28) =12180a(29) =60