3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51.
51, 48, 45 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9, 6, 3
3,6,9,12 тут прибавлятся по 3, своя цепочка-12 24 36 48
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51.
51, 48, 45 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9, 6, 3
3,6,9,12 тут прибавлятся по 3, своя цепочка-12 24 36 48
А ВТОРАЯ ЦЕПОЧКА 30 27 24 21 ТУТ УМЕНЬШАЕТСЯ НА 3