4 n 9 16 July 8, 2019 16 32 64 128 1 4 9 16 n 2 formula 1 4 9 16 n 2 formula proof 1 4 9 16 n formula 1 4 9 16 n 16 8 4 9 n 45 If m 4 n 9 and r 16 1 4 9 16 and 25 sequence
