a(n) is the first nonsquarefree number k such that the n consecutive nonsquarefree numbers starting with k are in arithmetic progression.
A380595
a(n) is the first nonsquarefree number k such that the n consecutive nonsquarefree numbers starting with k are in arithmetic progression.
Terms
- a(0) =4a(1) =4a(2) =16a(3) =28a(4) =28a(5) =5050a(6) =6348a(7) =144946a(8) =3348550a(9) =221167422a(10) =221167422a(11) =47255689915a(12) =82462576220
External references
- oeis: A380595