4 6•3 9 July 8, 2019 16 32 64 128 4 6 3 9 4 6 3 9 2 4 6 9 3 1 4 6 9 3 7 4 3 6 9 5 4 6 3 8 9 8 4 6 3 9 1 4 6 x 3 9 4 2 6 3 9 1 4 6 2 8 3 9 7 5 4 6 3 9 3 4 6 9 13 3 4 6 9 18 3 4 6 9 13 sequence formula 3 4 6 9 14
