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hoax n.  and  tau n.

First numbers that belong to both sets:

84, 136, 424, 516, 732, 948, 1116, 1344, 1576, 1812, 1824, 2008, 2232, 2640, 2872, 2960, 3042, 3552, 3592, 3712, 3736, 4024, 4188, 4456, 4744, 4824, 5052, 5176, 5268, 5464, 5484, 5652, 5752, 5840, 6016, 6184, 6472, 6564, 6616, 6904, 6960, 7008, 7048, 7212, 7428, 7624, 8076, 8244, 8292, 8508, 8720, 8724, 9540, 10188, 10464, 10624, 10884, 10936, 11232, 11484, 11944, 12192, 12612, 12664, 12780, 12828, 12880, 12952, 13096, 13428, 13672, 14076, 14208, 14480, 14724, 15256, 15976, 16000, 16552, 17148, 17364, 17964, 18136, 18612, 18712, 19144, 19260, 19308, 19524, 19920, 20376, 20556, 20728, 20872, 21680, 21852, 22144, 22744, 22960, 23148, 23196, 23920, 24240, 24264, 24480, 24560, 24640, 25092, 25336, 26016, 26056, 26632, 27036, 27516, 27540, 27600, 27684, 28032, 28164, 28216, 29244, 30088, 30132, 30664, 30808, 31384, 32104, 32392, 32484, 32880, 33256, 33336, 33832, 34264, 34640, 34960, 35128, 35272, 35704, 35928, 36136, 36384, 36720, 36804, 37144, 37404, 38008, 38160, 38296, 38960, 39736, 40024, 40476, 40644, 40692, 41176, 41556, 41840, 41940, 41988, 42184, 42472, 42640, 42852, 43048, 43280, 43284, 43336, 43680, 43704, 43716, 44056, 44160, 44532, 45180, 45208, 45216, 45840, 46504, 46752, 46792, 46936, 47172, 47224, 47328, 48232, 49040, 49068, 49116, 49200, 50208, 50412, 50480, 50536, 50628, 50824, 51276, 51924, 52308, 52356, 52408, 54072, 54084, 54240, 54252, 54424, 54480, 54732, 54856, 55368, 55392, 55576, 55812, 55864, 56152, 56664, 56844, 57016, 57040, 57492, 58024, 59280, 59484, 59916, 60132, 60184, 60328, 61212, 61428, 61624, 61848, 62028, 62508, 62724, 63208, 63280, 63372, 63496, 63972, 64072, 64960, 65000, 65124, 65316, 65748, 66000, 66376, 66828, 66952, 67096, 67440, 67908, 68080, 68104, 69544, 69624, 70696, 70944, 71748, 72444, 72672, 72832, 73044, 73092, 73360, 73440, 73692, 74388, 74604, 74960, 75136, 75252, 75304, 75736, 76080, 76116, 76320, 76332, 76416, 76548.

Some larger examples :