A194426 Elements n of A194234 for which the cototient(n) is not a prime power (A000961).
45, 75, 99, 153, 175, 245, 261, 325, 363, 369, 475, 531, 539, 637, 639, 833, 845, 847, 867, 909, 925, 963, 1075, 1127, 1183, 1233, 1341, 1519, 1573, 1611, 1675, 1719, 1773, 1805, 1813, 1859, 1975, 2009, 2023, 2043, 2151, 2299, 2303
Offset: 1