A048449 Starting from generation 2 add previous and next term yielding generation 3.
7, 13, 23, 30, 44, 52, 68, 80, 94, 114, 126, 146, 160, 176, 194, 210, 232, 246, 266, 282, 296, 318, 336, 358, 380, 398, 412, 428, 448, 464, 500, 514, 550, 560, 592, 604, 630, 650, 670, 690, 716, 728, 758, 766, 796, 814, 846, 874, 898, 920, 934, 958, 972, 1004
Offset: 0