Number of primitive practical numbers (PPNs)(A267124) between successive primorial numbers (A002110) where the PPNs q are in the range A002110(n-1) < q <= A002110(n).
A361872
Number of primitive practical numbers (PPNs)(A267124) between successive primorial numbers (A002110) where the PPNs q are in the range A002110(n-1) < q <= A002110(n).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =8a(4) =108a(5) =1107a(6) =15788a(7) =252603a(8) =5121763
External references
- oeis: A361872