A067232 Numbers n such that phi(3n-1)=sigma(n).

1, 3, 5, 7, 35, 39, 47, 51, 145, 210, 215, 287, 321, 355, 385, 532, 572, 635, 702, 1248, 1357, 1566, 1577, 1720, 1837, 2241, 2619, 2635, 2910, 3243, 4117, 4290, 4311, 5010, 5346, 5495, 5605, 6557, 7565, 7637, 7683, 9342, 9741, 9798, 10792, 11679, 13039