What comes next in the sequence 1 3 7 15 July 8, 2019 16 32 64 128 What is the next term in the sequence 1 3 7 15 What is the next number in the sequence 1 3 7 15 What is the next number in the series 3 7 15 31 series 1 3 9 27 pattern rule 1 3 7 15 sequence