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inconsummate n.  and  triangular n.

First numbers that belong to both sets:

276, 630, 861, 1326, 1596, 1653, 2016, 3321, 3486, 3741, 3828, 4371, 4656, 5253, 5460, 5565, 6555, 7626, 8256, 8646, 9591, 10296, 10731, 11175, 12720, 15576, 15753, 25425, 25878, 29403, 29646, 32385, 36585, 37128, 38226, 39621, 40755, 45753, 46056, 51681, 52650, 53628, 54285, 60378, 61776, 62481, 62835, 65703, 77028, 78210, 84255, 87153, 89676, 90951, 91806, 94395, 94830, 95703, 96141, 101025, 101475, 102831, 106953, 114960, 122760, 124251, 126756, 127260, 132870, 136503, 140715, 142311, 146070, 147696, 150426, 165600, 170820, 171405, 176121, 183921, 185136, 188805, 189420, 192510, 195000, 196251, 198135, 198765, 206403, 210276, 212226, 214185, 215496, 221445, 222111, 232221, 240471, 246051, 258840, 259560, 272691, 274911, 280875, 281625, 283128, 283881, 286146, 288420, 290703, 292995, 295296, 299925, 301476, 308505, 309291, 311655, 314028, 318003, 321201, 322806, 326028, 327645, 328455, 330891, 332520, 343206, 345696, 350703, 353220, 362526, 365085, 365940, 367653, 370230, 372816, 378015, 380628, 381501, 386760, 392055, 407253, 412686, 415416, 426426, 429201, 431985, 438516, 446040, 446985, 458403, 468996, 472878, 478731, 480690, 481671, 492528, 502503, 513591, 516636, 526851, 535095, 542361, 544446, 550725, 553878, 558096, 576201, 585903, 586986, 589155, 603351, 626640, 640146, 646953, 650370, 656085, 660675, 669903, 680361, 683865, 694431, 695610, 712221, 717003, 724206, 727821, 730236, 737505, 753378, 781875, 802011, 828828, 846951, 863955, 878475, 883785, 898470, 902496, 911925, 930930, 932295, 935028, 936396, 947376, 951510, 968136, 969528, 976503, 980700.