a(n) is the least start of a run of exactly n successive squarefree numbers (A005117) that are odd, or -1 if no such run exists.
A373551
a(n) is the least start of a run of exactly n successive squarefree numbers (A005117) that are odd, or -1 if no such run exists.
Terms
- a(0) =1a(1) =3a(2) =95a(3) =15a(4) =47a(5) =483a(6) =5045a(7) =6347a(8) =266447a(9) =1085919a(10) =144939a(11) =54133739a(12) =3348547a(13) =1156672145a(14) =952689827a(15) =3639059747a(16) =49394809937
External references
- oeis: A373551