(-7 5 1 7) 2 9= July 8, 2019 16 32 64 128 (- 7 5 1 7 ) 2 9 5 1 2 7 9 kof 5 7 1 2 9 4 5 2 7 x 1 7 9 5 1 2 7 9 kof pattern 5 2 7 times 1 7 9