The number of imprimitive 3-Carmichael numbers (A087788 and A328935) below 10^n.
A328937
The number of imprimitive 3-Carmichael numbers (A087788 and A328935) below 10^n.
Terms
- a(0) =4a(1) =11a(2) =25a(3) =59a(4) =127a(5) =252a(6) =471a(7) =928a(8) =1734a(9) =3462a(10) =6615a(11) =12725a(12) =24396a(13) =46877a(14) =89854a(15) =173331a(16) =334737a(17) =647265a(18) =1253176
External references
- oeis: A328937