Search a number
arithmetic n.  and  oban n.

First numbers that belong to both sets:

3, 5, 6, 7, 11, 13, 15, 17, 19, 20, 23, 27, 29, 30, 33, 35, 37, 38, 39, 53, 55, 56, 57, 59, 60, 65, 66, 67, 68, 69, 70, 73, 77, 78, 79, 83, 85, 86, 87, 89, 93, 95, 96, 97, 99, 303, 305, 307, 308, 309, 310, 311, 313, 315, 317, 318, 319, 323, 326, 327, 329, 330, 335, 337, 339, 350, 353, 355, 356, 357, 358, 359, 365, 366, 367, 369, 373, 375, 376, 377, 378, 379, 380, 383, 385, 389, 390, 393, 395, 397, 398, 399, 500, 503, 505, 506, 507, 509, 510, 511, 513, 515, 517, 518, 519, 523, 526, 527, 533, 535, 537, 539, 550, 553, 555, 557, 558, 559, 563, 565, 566, 568, 569, 570, 573, 575, 577, 579, 580, 583, 585, 587, 589, 590, 593, 595, 596, 597, 598, 599, 605, 606, 607, 608, 609, 611, 612, 613, 615, 616, 617, 618, 619, 620, 623, 627, 629, 630, 633, 635, 636, 637, 638, 639, 653, 655, 658, 659, 660, 663, 665, 667, 668, 669, 670, 673, 677, 678, 679, 683, 685, 686, 687, 689, 690, 693, 695, 697, 699, 703, 705, 707, 708, 709, 710, 713, 715, 716, 717, 718, 719, 723, 725, 726, 727, 728, 733, 735, 736, 737, 739, 750, 753, 755, 757, 758, 759, 763, 765, 766, 767, 769, 770, 773, 777, 779, 780, 783, 785, 786, 787, 788, 789, 790, 793, 795, 797, 798, 799, 803, 805, 806, 807, 809, 811, 812, 813, 815, 817, 820, 823, 825, 826, 827, 829, 830, 833, 835, 836, 837, 838, 839, 853, 855, 857, 858, 859, 860, 863, 865, 869, 870, 875, 877, 878, 879, 883, 885, 886, 887.

Some larger examples :

965, 966, 967, 969, 973, 977, 978, 979, 980, 983, 985, 987, 989, 990, 993, 995, 996, 997, 998, 999.