属于这两组的第一个数字：
6,15,28,45,66,91,120,153,190,231,276,325,378,435,496,561,630,703,780,861,946,1035,1128,1225,1326,1431,1540,1653,1770,1891,2016,2145,2278,2415,2556,2701,2850,3003,3160,3321,3486,3655,3828,4005,4186,4371,4560,4753,4950,5151,5356,5565,5778,5995,6216,6441,6670,6903,7140,7381,7626,7875,8128,8385,8646,8911,9180,9453,9730,10011,10296,10585,10878,11175,11476,11781,12090,12403,12720,13041,13366,13695,14028,14365,14706,15051,15400,15753,16110,16471,16836,17205,17578,17955,18336,18721,19110,19503,19900,20301,20706,21115,21528,21945,22366,22791,23220,23653,24090,24531,24976,25425,25878,26335,26796,27261,27730,28203,28680,29161,29646,30135,30628,31125,31626,32131,32640,33153,33670,34191,34716,35245,35778,36315,36856,37401,37950,38503,39060,39621,40186,40755,41328,41905,42486,43071,43660,44253,44850,45451,46056,46665,47278,47895,48516,49141,49770,50403,51040,51681,52326,52975,53628,54285,54946,55611,56280,56953,57630,58311,58996,59685,60378,61075,61776,62481,63190,63903,64620,65341,66066,66795,67528,68265,69006,69751,70500,71253,72010,72771,73536,74305,75078,75855,76636,77421,78210,79003,79800,80601,81406,82215,83028,83845,84666,85491,86320,87153,87990,88831,89676,90525,91378,92235,93096,93961,94830,95703,96580,97461,98346,99235,100128,101025,101926,102831,103740,104653,105570,106491,107416,108345,109278,110215,111156,112101,113050,114003,114960,115921,116886,117855,118828,119805,120786,121771,122760,123753,124750,125751,126756,127765,128778,129795,130816,131841,132870,133903,134940,135981,137026,138075,139128,140185,141246,142311,143380,144453,145530,146611,147696,148785,149878,150975,152076,153181,154290,155403,156520,157641. 一些较大的示例：
9999828024753,9999836968950,9999845913151,9999854857356,9999863801565,9999872745778,9999881689995,9999890634216,9999899578441,9999908522670,9999917466903,9999926411140,9999935355381,9999944299626,9999953243875,9999962188128,9999971132385,9999980076646,9999989020911,9999997965180.