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Continue to ChatEvaluation of the convolution sum ∑al bm=nσ(l)σ3(m) for (a,b)=(1,7),(7,1),(1,8),(8,1),(1,9),(9,1) and representations by certain quadratic forms in twelve variables - https://avesis.erdogan.edu.tr/yayin/d4235ba8-8c4e-44c8-a8ee-109b4c54110f/evaluation-of-the-convolution-sum-albm-nl3m-for-a-b-1-7-7-1-1-8-8-1-1-9-9-1-and-representations-by-certain-quadratic-forms-in-twelve-variables