Primes embedded in prime(n).

Terms

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