Abundance values of numbers whose abundance is (+-1) times a prime.

Terms

a(0) =-2a(1) =-5a(2) =-2a(3) =3a(4) =2a(5) =-19a(6) =19a(7) =-41a(8) =-7a(9) =-41a(10) =17a(11) =2a(12) =-109a(13) =-2a(14) =7a(15) =-47a(16) =-271a(17) =199a(18) =-127a(19) =71a(20) =2a(21) =-37a(22) =499a(23) =2a(24) =-71a(25) =199a(26) =353a(27) =-811a(28) =1021a(29) =-929