5 9 2 3 1 July 8, 2019 16 32 64 128 5 9 2 3 1 6 5 9 2 3 11 5 2 9 3 1 4 5 2 9 3 1 7 9 5 2 15 3 5 6x 9 2 3 12 9 * 5 3 2 10 9 2 5 3 1 8 18 5 9 2 3 5 9 12 3 2 13 5 9 3 2 9 3 )- 2 5 )= 17 2 3 5 9 17 next number 2 3 5 9 17 pattern 2 3 5 9 17 sequence formula