Number of base-2 strong pseudoprimes (A001262) less than 10^n.
A055552
Number of base-2 strong pseudoprimes (A001262) less than 10^n.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =5a(4) =16a(5) =46a(6) =162a(7) =488a(8) =1282a(9) =3291a(10) =8607a(11) =22407a(12) =58892a(13) =156251a(14) =419489a(15) =1135860a(16) =3115246a(17) =8646507a(18) =24220195
External references
- oeis: A055552