Number of integers m such that 5^n < 2^m < 5^(n+1).

Terms

a(0) =2a(1) =2a(2) =2a(3) =3a(4) =2a(5) =2a(6) =3a(7) =2a(8) =2a(9) =3a(10) =2a(11) =2a(12) =3a(13) =2a(14) =2a(15) =3a(16) =2a(17) =2a(18) =3a(19) =2a(20) =2a(21) =3a(22) =2a(23) =2a(24) =3a(25) =2a(26) =2a(27) =3a(28) =2a(29) =2