[421,757,1021,1097,1117,1241,1301,1553,1625,1649, 1973,2069,2125,2237,2249,2273,2665,2789,2861,3085, 3349,3373,3461,3517,3545,3877,3917,4133,4397,4481, 4573,4589,4885,5389,5521,5573,5713,5717,6185,6221, 6317,6637,6997,7093]