Search a number
brilliant n.  and  Ulam n.

First numbers that belong to both sets:

4, 6, 209, 221, 253, 319, 341, 451, 781, 893, 949, 1037, 1079, 1081, 1157, 1387, 1643, 2117, 2581, 2809, 3239, 3481, 3649, 4187, 4453, 6889, 11881, 15251, 17113, 17741, 17819, 18923, 20651, 21037, 22879, 22987, 26051, 27089, 27331, 28321, 28841, 28907, 29149, 29591, 29987, 30847, 31553, 33919, 34547, 34691, 35947, 36853, 37129, 37327, 37391, 37523, 38771, 38989, 39187, 39211, 39289, 39407, 39751, 40247, 40633, 40741, 41303, 41449, 41623, 43157, 43507, 44377, 44743, 45173, 45347, 45349, 46009, 46339, 46517, 47959, 48689, 48929, 48931, 49141, 49403, 49447, 50573, 51409, 52447, 52621, 53293, 54737, 54827, 54937, 55687, 55973, 56291, 57007, 57263, 57371, 58561, 58649, 59599, 60227, 60547, 60701, 60941, 61073, 61823, 61889, 62663, 62729, 63169, 63269, 63619, 63961, 64349, 65041, 65363, 65473, 65869, 66971, 67357, 68093, 68129, 68303, 68569, 68801, 69451, 69647, 70253, 70531, 70597, 71377, 71501, 71609, 72361, 72581, 73793, 73813, 73903, 73937, 74807, 74939, 75301, 75841, 75863, 76127, 76151, 76217, 77683, 78937, 78961, 79061, 79403, 79753, 82091, 82169, 83381, 83533, 83767, 83887, 84373, 84781, 84803, 85387, 85409, 85759, 86147, 86167, 86299, 87809, 88637, 88889, 89197, 89773, 90751, 91337, 91349, 91933, 91999, 92329, 92341, 93451, 93749, 93991, 94037, 94267, 95647, 96253, 96647, 96727, 97079, 97289, 97343, 97507, 97751, 97837, 98071, 98303, 98677, 98741, 99007, 99283, 99779, 100231, 100273, 100561, 100879, 101069, 101551, 102721, 103127, 104077, 104813, 105011, 105113, 105289, 105377, 105419, 105851, 106027, 107659, 107813, 108331, 109223, 110213, 111329, 111557, 112949, 113059, 113389, 114139, 114403, 114511, 114943, 115393, 115439, 116321, 116353, 117409, 118007, 118403, 118999, 119261, 119957, 120409, 120541, 120839, 120971, 122159, 122933, 123107, 123241, 124099, 124211, 125071, 126029, 126283, 126911, 127187, 127451, 127559, 127573, 128641, 128773, 129071, 130217, 131407, 131981, 132133, 133061, 133667, 133907, 134041, 134149, 134557, 134801, 135143, 135361.

Some larger examples :