Number of Poulet numbers (or pseudoprimes to base 2, A001567) less than 10^n.
A055550
Number of Poulet numbers (or pseudoprimes to base 2, A001567) less than 10^n.
Terms
- a(0) =0a(1) =0a(2) =3a(3) =22a(4) =78a(5) =245a(6) =750a(7) =2057a(8) =5597a(9) =14884a(10) =38975a(11) =101629a(12) =264239a(13) =687007a(14) =1801533a(15) =4744920a(16) =12604009a(17) =33763684a(18) =91210364
External references
- oeis: A055550