Number of Fermat pseudoprimes to bases 2, 3, 5 and 7 less than 10^n.
A114250
Number of Fermat pseudoprimes to bases 2, 3, 5 and 7 less than 10^n.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =3a(5) =19a(6) =63a(7) =175a(8) =501a(9) =1230a(10) =3086a(11) =7469a(12) =18402a(13) =44748a(14) =109787a(15) =269289a(16) =668521a(17) =1675317a(18) =4236270
External references
- oeis: A114250