Numbers k such that phi(x) = k has exactly 8 solutions.

Terms

a(0) =36a(1) =64a(2) =176a(3) =200a(4) =224a(5) =280a(6) =324a(7) =464a(8) =520a(9) =888a(10) =920a(11) =1184a(12) =1368a(13) =1400a(14) =1520a(15) =1696a(16) =1720a(17) =1904a(18) =1960a(19) =2040a(20) =2096a(21) =2120a(22) =2256a(23) =2392a(24) =2600a(25) =2656a(26) =2712a(27) =2752a(28) =2864a(29) =2944