Search a number
brilliant n.  and  centered heptagonal n.

First numbers that belong to both sets:

253, 841, 26797, 31921, 49981, 64261, 73081, 102943, 135143, 144943, 146371, 170171, 174833, 194111, 243013, 265651, 442331, 679141, 1526911, 1678447, 2713481, 2984983, 3063061, 3095891, 3255911, 3877147, 4324013, 4576573, 4616683, 4877531, 5002271, 5205131, 5342611, 5455633, 5667397, 5703083, 5765803, 5846947, 5956021, 6066103, 6242461, 6440323, 6776953, 6786697, 7953947, 7996213, 8049203, 8081081, 8134351, 8177093, 9453823, 9919603, 10264297, 10983743, 12469297, 12748303, 13070947, 13165811, 13288283, 13329233, 13951043, 14007001, 14330933, 15427651, 15560203, 15604513, 16261631, 16276723, 17303833, 17366147, 17679397, 18765391, 18846521, 18976693, 19221973, 19551463, 19950547, 21517721, 22235221, 26961901, 29363993, 30427783, 33277903, 36030653, 39902633, 43354081, 44046647, 44769733, 45549197, 47385521, 48135403, 48551651, 50739697, 57026663, 57678391, 66548861, 67375547, 82379683, 129190951, 131454793, 145180141, 147488503, 155221291, 163151647, 166804093, 188384813, 198110683, 200434697, 208135313, 210083147, 217082251, 218241493, 233764147, 245345647, 259613047, 270086041, 272057353, 277453093, 279951673, 286563733, 291333883, 292420591, 293124833, 299306897, 304834447, 310808233, 311336173, 316640213, 317239721, 317506351, 322324843, 329892403, 334461401, 334735171, 338029147, 344109991, 346404283, 349475197, 350595253, 353051623, 360756397, 364747153, 379106197, 380272733, 380856673, 387383221, 397165147, 399854113, 404958023, 412522573, 424771453, 432440191, 432518003, 433686023, 438373853, 450441881, 454261697, 454500971, 464768683, 468729647, 470026663, 472544731, 485318401, 487629143, 493014523, 497010403, 498262423, 501022411, 503706043, 508419647, 509010391, 512053921, 512392651, 515786111, 516126073, 523376743, 530591797, 532230623, 532316947, 533612647, 534390823, 535429273, 549371593, 557469571, 559591831, 562339051, 562694021, 571694131, 572678653, 579233761, 580314883, 587820241, 590726753, 594369973, 595191241, 598756621, 599122903, 605827223, 606840697, 626913253, 655812613, 659170583, 661574383, 678133681, 678620951, 682134461, 697464503, 697859821, 703009147, 706585153, 716465947, 718971947, 727827871, 735519793, 736230293, 743966371, 748156571, 758735083, 772816591, 776982851, 777921803, 779174621, 783253241, 786292963, 789233453, 797136803, 802639573, 804867211, 816693151, 818404903, 830006101, 830868697, 833567197, 835620983, 843535351, 846036647, 847778863, 854328133, 858817961, 861341797, 864419291, 869818111, 887452483, 890576233, 894264841, 898297471, 899531473, 903575947, 911240261, 913161397, 915877033, 916330031, 917123047, 919504153, 926210447, 926324323, 937289011, 940040263, 940384453, 944634643, 948663913, 953741447, 961615201, 967658147, 970103933, 981675647, 988839853, 990134531, 999694151.