Numbers equal to the arithmetic derivative of their Euler totient function.

Terms

a(0) =31a(1) =32a(2) =80a(3) =81a(4) =112a(5) =176a(6) =192a(7) =244a(8) =368a(9) =752a(10) =859a(11) =912a(12) =944a(13) =1296a(14) =1328a(15) =1712a(16) =1723a(17) =2672a(18) =2864a(19) =3024a(20) =3632a(21) =4208a(22) =5552a(23) =5744a(24) =6128a(25) =6156a(26) =7472a(27) =7664a(28) =8048a(29) =8748