2,-2,2,-2,...; 3,6,12,24,48,...; 1,-2,3,-4,...;
2,-2,2,-2,2,22 3,6,12,24,48,52 1,-2,3-4,5
2, -2, 2, -2, ( 2 ) 3, 6, 12, 24, 48, ( 96 ) 3) 1, -2, 3, -4, ( 5 )