SOLUTION: Find the sum of 1/10+1/40+1/88+...+1/4062108.

Question 796637: Find the sum of 1/10+1/40+1/88+...+1/4062108.

Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
Try to identify the pattern
10 = 2x5 = (2+0x3)(2+3)
40 = 5x8 = (2+3)(2+2x3)
88 = 8x11 = (2+2x3)(2+3x3)

The n-th term of the series is given by

Now, I think you can proceed yourself.

Cheers!!!