Composite terms of A181659, where the sum of the iterated totient function attains a record.

Terms

a(0) =289a(1) =2329a(2) =4369a(3) =4913a(4) =18769a(5) =21331a(6) =35209a(7) =66049a(8) =128881a(9) =197143a(10) =258121a(11) =281929a(12) =516961a(13) =739903a(14) =971203a(15) =1762249a(16) =1942663a(17) =2070721a(18) =2898703a(19) =2952673a(20) =3820819a(21) =4142881a(22) =8288641a(23) =16773619a(24) =16843009a(25) =16974593a(26) =20229241a(27) =21762361a(28) =32472241a(29) =132575071