A166506 Indices of terms in A166504 which are not in A152242.
70, 71, 72, 73, 115, 116, 117, 183, 185, 186, 250, 251, 252, 253, 365, 367, 368, 427, 429, 534, 535, 536, 537, 594, 595, 596, 640, 642, 643, 645, 647, 648, 649, 650, 653, 654, 655, 656, 657, 659, 660, 661, 662, 664, 665, 666, 667, 669, 671, 672, 673, 674
Offset: 1
Examples
a(1)=70 since the first term in A166504 which is not in A152242 is A166504(70)=202.