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congruent n.  and  oban n.

First numbers that belong to both sets:

5, 6, 7, 13, 15, 20, 23, 28, 29, 30, 37, 38, 39, 53, 55, 56, 60, 63, 65, 69, 70, 77, 78, 79, 80, 85, 86, 87, 88, 93, 95, 96, 303, 306, 308, 309, 310, 311, 312, 313, 316, 317, 318, 319, 320, 323, 325, 326, 327, 330, 333, 335, 336, 350, 353, 357, 358, 359, 365, 366, 367, 368, 369, 373, 375, 376, 380, 383, 386, 389, 390, 395, 397, 398, 399, 500, 503, 505, 508, 509, 510, 511, 517, 518, 519, 525, 526, 527, 533, 535, 536, 550, 557, 558, 559, 565, 566, 567, 568, 573, 575, 580, 583, 585, 589, 590, 596, 597, 598, 599, 600, 605, 606, 607, 608, 609, 613, 615, 616, 623, 628, 629, 630, 636, 637, 638, 639, 653, 655, 656, 658, 660, 663, 668, 669, 670, 677, 678, 679, 685, 686, 687, 689, 693, 695, 696, 700, 703, 709, 710, 711, 717, 718, 719, 720, 723, 725, 726, 727, 728, 733, 735, 736, 750, 756, 757, 758, 759, 760, 765, 766, 767, 773, 775, 776, 777, 783, 788, 789, 790, 793, 796, 797, 798, 799, 805, 806, 807, 813, 815, 820, 823, 828, 829, 830, 837, 838, 839, 850, 853, 855, 856, 860, 863, 866, 869, 870, 876, 877, 878, 879, 880, 885, 886, 887, 888, 889, 890, 893, 895, 896, 903, 905, 909, 910, 911, 915, 916, 917, 918, 919, 920, 925, 926, 927, 933, 935, 950, 956, 957, 958, 959, 960, 965, 966, 967, 973, 975, 976, 980, 983, 985, 987, 988, 989, 990, 995, 997, 998, 999.