Какое число следующее? 2,1,4,3,6,5,8,?,?
2, 1, 4, 3, 6, 5, 8, 7, 10
2, 1, 4, 3, 6, 5, 8, 7, 10, 9, 12, 11, 14, 13, ...
7,10,9,12,11,14 ....