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Answer: 7, 28, 63, 112, 175, 252, ...
Step-by-step explanation:
7, 28, 63, 112, ...
7*1, 7*4, 7*9, 7*16, ...
7*1², 7*2², 7*3^2, 7*4², ...
Hence, 7n², n=1, 2, 3, 4, ...
7*5²=
7*5*5=
175
7*6²=
7*6*6=
252
Thus,
7, 28, 63, 112, 175, 252, ...