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centered pentagonal n.  and  wasteful n.

First numbers that belong to both sets:

6, 51, 76, 226, 276, 391, 456, 526, 681, 766, 856, 951, 1156, 1266, 1626, 1756, 2326, 2641, 2806, 2976, 3151, 3516, 3706, 4101, 4306, 4516, 4731, 5176, 5406, 6126, 6376, 6631, 6891, 7156, 7426, 7701, 7981, 8266, 8556, 8851, 9456, 9766, 10726, 12076, 12426, 13506, 13876, 15016, 15801, 16606, 17016, 18276, 18706, 19581, 20026, 20476, 23766, 25251, 25756, 26266, 26781, 27301, 27826, 28356, 28891, 29431, 29976, 30526, 31641, 32206, 32776, 33351, 34516, 35106, 35701, 36301, 36906, 37516, 38131, 38751, 39376, 40006, 40641, 41926, 42576, 43231, 44556, 45226, 45901, 46581, 47266, 47956, 48651, 49351, 50056, 50766, 52926, 53656, 54391, 55131, 55876, 56626, 57381, 58141, 58906, 59676, 62016, 62806, 64401, 65206, 66016, 66831, 68476, 69306, 71826, 72676, 73531, 74391, 75256, 76126, 77001, 77881, 78766, 79656, 80551, 81451, 82356, 83266, 85101, 86026, 86956, 87891, 88831, 89776, 90726, 91681, 93606, 94576, 95551, 96531, 97516, 98506, 99501, 102516, 105576, 106606, 108681, 110776, 113956, 115026, 117181, 118266, 119356, 121551, 123766, 127126, 131676, 135141, 136306, 137476, 138651, 141016, 142206, 145806, 147016, 149451, 150676, 151906, 156876, 160656, 164481, 167056, 168351, 170956, 172266, 176226, 177556, 181576, 184281, 188376, 191131, 192516, 196701, 199516, 202351, 205206, 208081, 209526, 210976, 215356, 216826, 221266, 222756, 227256, 228766, 233326, 234856, 237931, 239476, 241026, 242581, 245706, 247276, 252016, 253606, 255201, 258406, 260016, 264876, 266506, 268141, 269781, 271426, 273076, 276391, 278056, 279726, 281401, 283081, 284766, 286456, 288151, 289851, 291556, 293266, 296701, 298426, 300156, 301891, 303631, 305376, 307126, 310641, 312406, 315951, 319516, 321306, 326706, 328516, 332151, 333976, 335806, 337641, 339481, 341326, 343176, 348756, 350626, 352501, 354381, 356266, 358156, 360051, 361951, 363856, 365766, 369601, 371526, 373456, 377331, 379276, 381226, 383181, 387106, 389076, 391051, 395016, 397006, 399001, 401001, 403006, 405016, 407031, 409051, 411076, 413106, 419226, 421276, 423331, 425391.

Some larger examples :