Inverse image of primes 2,3,5,7,... under the map Q defined in A095172.

Terms

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