Positions where records occur in A072340.

Terms

a(0) =3a(1) =4a(2) =5a(3) =28a(4) =1783a(5) =7148a(6) =273223a(7) =398314a(8) =1180939a(9) =1751431a(10) =10970993a(11) =17545207a(12) =20110862a(13) =190270082a(14) =10261454491