Number of eight-prime Carmichael numbers less than 10^n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =7a(13) =89a(14) =655a(15) =3622a(16) =16348a(17) =63635a(18) =223997a(19) =720406a(20) =2148017a(21) =6015901a(22) =16005646a(23) =40696220a(24) =99469866