3 4 6 9 13 what next July 8, 2019 16 32 64 128 3 4 6 9 13 what is the next number in the series 3 4 6 9 13 what is the next number 3 4 6 9 13 what comes next 3 4 6 9 13 next series Series 3 4 6 9 13 the next term is 3 + 13 3 6 9 13 what is the next number in the series