Least k > 1 such that n*(k*n-1) - 1 divides n^(k*n-1) - 1, or 0 if no such k exists.

Terms

a(0) =381713a(1) =58651a(2) =12301a(3) =2861a(4) =1656278791a(5) =547a(6) =5179643a(7) =214a(8) =2719331a(9) =26627a(10) =73651287679a(11) =90205a(12) =5069a(13) =5533707a(14) =13117a(15) =58385a(16) =791716066017a(17) =5589a(18) =21214381292a(19) =3802401a(20) =509437122973a(21) =167a(22) =1261552a(23) =6001a(24) =1144853a(25) =3111a(26) =6952504a(27) =143573