Numbers n such that phi(reverse(n)) = sigma(n).

Terms

a(0) =1a(1) =168a(2) =1141a(3) =1451a(4) =2139a(5) =2737a(6) =3938a(7) =7597a(8) =11831a(9) =19668a(10) =21415a(11) =23649a(12) =31894a(13) =32383a(14) =40649a(15) =52687a(16) =59677a(17) =121023a(18) =133661a(19) =136831a(20) =146055a(21) =148503a(22) =172095a(23) =190035a(24) =245998a(25) =276058a(26) =302005a(27) =302503a(28) =307705a(29) =396635