a(n) = least k such that the remainder when 31^k is divided by k is n.

Terms

a(0) =2a(1) =29a(2) =7a(3) =29787a(4) =13a(5) =113413a(6) =51a(7) =23a(8) =11a(9) =3309a(10) =38a(11) =19a(12) =21a(13) =17a(14) =22a(15) =115a(16) =118a(17) =37237a(18) =261a(19) =60212617a(20) =94a(21) =29769a(22) =134a(23) =51205605391a(24) =26a(25) =35a(26) =209a(27) =549a(28) =466a(29) =1558391