13 9 5 1 July 8, 2019 16 32 64 128 13 9 5 15 13 9 5 1 nth term 13 9 5 16 13 9 5 18 13 9 5 1 3 13 9 5 10 13 9 5 12 13 9 5 15 কত 13 9 5 1 a10 13 9 14 5 9 13 5 17 9 13 5 2 1 9 13 5 13 5 9 13 17 nth term 5 9 13 17 next three terms