1 4 16 2 July 8, 2019 16 32 64 128 1 4 16 25 1 4 16 24 1 4 16 20 1 4 16 2x ) 2x 1 4 16 2 8 1 4 16 27 1 4 16 25 sequence 1 4 27 16 what is the next number 1 4 2 16 3 1 4 27 16 x 36 343 1 4 27 16 blank 36 343 1 4 2 * 16 7 1 4 9 16 and 25 are all triangular numbers 1 2 4 16 sequence
