A074782 Let b(1)=b(2)=1, b(k) = (2^b(k-1)+2^b(k-2)) (mod k); sequence gives values of n such that b(n)=0.

4, 10, 16, 20, 24, 40, 64, 80, 128, 144, 192, 256, 358, 528, 1152, 1536, 1600, 1672, 2048, 2052, 2056, 2176, 2260, 2560, 2804, 3072, 3898, 4528, 5120, 5139, 6144, 7361, 7776, 12288, 15026, 15619, 16237, 16360, 16384, 16512, 18432, 23165, 24576