M 1 x 2 2 m 1 x 3m 3 0 July 8, 2019 16 32 64 128 M/(1 - m ^ 2) + 1/(1 + m) 2) (m + 1)/(m ^ 2 + m + 1) - 2/(1 - m) + (3m ^ 2 + 2m + 4)/(1 - m ^ 3) (m + 1)/(m ^ 2 + m + 1) - 2/(1 - m) + (3m ^ 2 + 2m + 4)/(1 - m ^ 3)