For each positive integer n, let Hn=1/1 + 1/2 +⋯+ 1/n . If ∑ (up)∞ (base)(n=4) 1/n*Hn*H(n-1)= a/b for relatively prime positive integers a and b, find a+b.

Question

For each positive integer n, let Hn=1/1  +  1/2  +⋯+  1/n  .   If   ∑ (up)∞ (base)(n=4) 1/n*Hn*H(n-1)= a/b for relatively prime positive integers a and b, find a+b.

Brutual · Answer

imageshack.us/photo/my-images/17/codecogseqn1.gif/ Did you mean this?

clavin · Answer

yes

Brutual · Answer

Except for the equals sign right?

amgad · Answer

17