First of 3 or more consecutive integers with equal values of phi(phi(n)).

Terms

a(0) =1a(1) =2a(2) =7a(3) =8a(4) =20a(5) =31a(6) =32a(7) =33a(8) =146a(9) =211a(10) =314a(11) =384a(12) =626a(13) =674a(14) =1754a(15) =2694a(16) =2695a(17) =5186a(18) =11714a(19) =12242a(20) =17329a(21) =17613a(22) =19310a(23) =25544a(24) =35774a(25) =36728a(26) =38018a(27) =40227a(28) =42626a(29) =56834