搜索号码
中心七边形n。  素数n。

属于这两组的第一个数字:

43,71,197,463,547,953,1471,1933,2647,2843,3697,4663,5741,8233,9283,10781,11173,12391,14561,18397,20483,29303,29947,34651,37493,41203,46691,50821,54251,56897,57793,65213,68111,72073,76147,84631,89041,93563,104147,112771,114031,124363,139301,150697,158047,168631,176401,187573,202441,207523,216133,230273,244861,252323,257993,289297,297403,299447,305621,307693,316051,333103,339613,357281,368551,384623,393961,415381,425083,432433,465011,472697,475273,485647,506731,528263,536453,547471,569843,581197,584053,592663,595547,607153,627733,630701,639647,654697,676061,688423,691531,700897,726181,729373,742211,751913,764947,781397,808081,835213,859321,873251,876751,890821,901447,933703,959183,973897,977593,1018711,1022491,1037681,1064533,1083923,1127197,1143143,1159201,1163233,1175371,1195741,1262101,1295953,1325941,1330253,1378147,1382543,1395773,1400197,1431361,1453831,1467397,1503881,1508473,1540813,1545461,1559447,1578193,1601783,1712551,1717451,1732193,1751947,1756903,1791791,1796803,1837151,1893361,1934773,1976633,1997731,2024261,2040263,2045611,2067073,2083243,2104901,2154041,2192653,2259643,2265271,2310547,2327641,2373533,2419873,2425697,2443211,2466661,2472541,2543647,2615761,2633947,2640023,2664397,2682751,2688883,2707321,2738191,2756797,2781703,2787947,2812993,2838151,2857093,2882447,2991451,3089311,3122281,3202123,3228961,3249163,3303343,3385453,3392341,3419963,3475543,3531571,3552697,3559753,3580963,3616453,3637831,3673601,3781961,3789241,3818431,3995923,4055983,4108903,4116491,4139297,4177447,4238851,4269721,4394321,4417883,4449397,4457293,4520713,4640833,4673131,4705541,4811647,4902353,4977197,5171041,5213671,5282243,5316697,5351263,5420731,5446897,5490647,5552191,5587513,5631823,5658493,5694151,5801797,5946893,5983447,5992603,6056891,6130783,6140051,6205123,6214447,6317473,6506963,6516511,6545197,6554773,6670231,6738047,6815971,6825743,6894343,6904171,7052431,7062371,7212311,7303031,7333397,7373983,7384147,7414681,7506661,7547723,7588897,7661221,7754713,7838293,7869751,7880251,8006797,8262913,8295211,8338373,8742931,8831663,8954401.

一些较大的示例: