Odd numbers k such that phi(k) and cototient(k) have the same prime signature.

Terms

a(0) =1735a(1) =2469a(2) =4341a(3) =4569a(4) =4989a(5) =5469a(6) =5637a(7) =5961a(8) =6879a(9) =7149a(10) =7407a(11) =8675a(12) =9969a(13) =11569a(14) =12949a(15) =13057a(16) =13089a(17) =13707a(18) =15829a(19) =15969a(20) =16407a(21) =18597a(22) =18969a(23) =19959a(24) =20109a(25) =20487a(26) =20721a(27) =21081a(28) =21309a(29) =21729