Search a number
congruent n.  and  Ulam n.

First numbers that belong to both sets:

6, 13, 28, 38, 47, 53, 62, 69, 77, 87, 102, 126, 138, 145, 148, 175, 180, 182, 189, 197, 206, 219, 221, 238, 253, 260, 309, 316, 319, 341, 358, 382, 390, 412, 414, 429, 431, 434, 485, 502, 544, 546, 566, 568, 585, 602, 605, 607, 624, 646, 668, 685, 695, 720, 732, 734, 751, 781, 783, 798, 820, 847, 861, 864, 866, 893, 905, 927, 949, 983, 991, 1020, 1023, 1025, 1030, 1037, 1052, 1079, 1081, 1101, 1103, 1125, 1155, 1157, 1164, 1167, 1169, 1186, 1191, 1208, 1230, 1252, 1308, 1311, 1335, 1340, 1360, 1387, 1389, 1404, 1406, 1428, 1431, 1462, 1470, 1472, 1492, 1509, 1536, 1550, 1616, 1646, 1648, 1660, 1709, 1724, 1748, 1765, 1770, 1790, 1792, 1812, 1814, 1853, 1856, 1858, 1902, 1919, 1941, 1944, 1966, 2012, 2032, 2034, 2054, 2056, 2093, 2095, 2117, 2134, 2247, 2249, 2254, 2288, 2327, 2332, 2418, 2420, 2445, 2447, 2462, 2464, 2484, 2486, 2511, 2525, 2550, 2552, 2574, 2581, 2584, 2589, 2613, 2616, 2630, 2662, 2696, 2748, 2750, 2789, 2814, 2831, 2833, 2919, 3029, 3031, 3038, 3068, 3070, 3085, 3090, 3092, 3109, 3205, 3207, 3214, 3239, 3261, 3263, 3288, 3290, 3373, 3390, 3415, 3454, 3456, 3476, 3495, 3525, 3527, 3544, 3549, 3591, 3593, 3605, 3608, 3622, 3625, 3630, 3669, 3671, 3696, 3725, 3740, 3742, 3759, 3764, 3806, 3808, 3886, 3918, 3930, 3952, 3960, 3974, 3991, 4038, 4101, 4118, 4121, 4148, 4150, 4165, 4167, 4258, 4294, 4324, 4326, 4341, 4343, 4365, 4370, 4390, 4404, 4407, 4453, 4470, 4517, 4519, 4534, 4536, 4580, 4600, 4622, 4641, 4646, 4668, 4732, 4734, 4756, 4798, 4878, 4903, 4925, 4927, 4996, 4998, 5020, 5037, 5049, 5052, 5079, 5118, 5159, 5181, 5206, 5208, 5250, 5269, 5272.

Some larger examples :