Search a number
centered heptagonal n.  and  Chen prime

First numbers that belong to both sets:

71, 197, 953, 1471, 2647, 2843, 5741, 10781, 14561, 18397, 29303, 34651, 37493, 46691, 54251, 56897, 65213, 68111, 84631, 93563, 104147, 112771, 114031, 139301, 202441, 257993, 299447, 305621, 357281, 393961, 415381, 465011, 472697, 528263, 569843, 595547, 630701, 639647, 654697, 676061, 742211, 751913, 781397, 873251, 890821, 959183, 1037681, 1159201, 1195741, 1330253, 1378147, 1400197, 1467397, 1503881, 1559447, 1712551, 1717451, 1732193, 1791791, 1837151, 1893361, 2024261, 2104901, 2154041, 2310547, 2373533, 2425697, 2443211, 2466661, 2543647, 2664397, 2787947, 2882447, 2991451, 3637831, 3673601, 3781961, 3818431, 4116491, 4139297, 4394321, 4417883, 4705541, 4902353, 4977197, 5490647, 5694151, 5983447, 6056891, 6140051, 6506963, 6738047, 6825743, 7212311, 7303031, 7333397, 7880251, 8831663, 9010471, 9100547, 9134441, 9270647, 9546083, 9592381, 9650411, 9731947, 9790397, 9825551, 10360421, 10444897, 10897111, 11245697, 11396771, 11548853, 11650801, 12050081, 12363821, 12535447, 12628351, 12734947, 12841991, 12962951, 13111561, 13125113, 13617647, 14105197, 14288471, 15368921, 15856793, 15961261, 16036091, 16337161, 16625771, 17009371, 17179541, 18074897, 18506951, 19041947, 19156411, 19485341, 20034197, 20286197, 20488931, 21171991, 22094297, 22714147, 22731983, 23869763, 24532397, 25808791, 26286191, 26671261, 26981333, 27293197, 27685547, 27744641, 27981647, 28219661, 29607803, 30655241, 31091831, 31910831, 32016601, 32249911, 32612147, 33645851, 33710993, 33906797, 34081321, 34234397, 35115697, 35493641, 35739271, 36752941, 36843731, 37185191, 37757791, 38011121, 39032911, 39056291, 39619511, 40567171, 40829741, 41045201, 41117147, 43674947, 43749161, 46692647, 48760447, 49258133, 49284397, 51488711, 51623041, 52676821, 52785503, 53030447, 53357921, 54318811, 55093697, 56014001, 56126071, 56210197, 57139741, 57337897, 57366233, 58476797, 58705921, 59424821, 59511383, 60003091, 60206147, 61021801, 61168031, 61607771, 61960697, 62108047, 63740447, 64099421, 64459403, 64579621, 64730051, 65091797, 67744601, 69137531, 70262081, 71743897, 73401371, 73818697, 74948147, 76642021, 76674781, 77199893, 78785981, 78885647, 79284941, 79986131, 80488871, 80892197, 83333321, 84052151, 84567491, 84877451, 87657571, 88043341, 88218971, 88887961, 89170397, 90767447, 92019397, 93027131, 95205041, 95533901, 96119941, 97297397, 97851797, 98185193, 99785911.