The number of decimal digits in the Lucas-Lehmer number A003010(n).

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =10a(5) =19a(6) =37a(7) =74a(8) =147a(9) =293a(10) =586a(11) =1172a(12) =2343a(13) =4686a(14) =9371a(15) =18742a(16) =37484a(17) =74967a(18) =149933a(19) =299866a(20) =599731a(21) =1199461a(22) =2398922a(23) =4797844a(24) =9595688a(25) =19191376a(26) =38382751a(27) =76765501a(28) =153531001a(29) =307062002