In mathematics, the n-th hyperharmonic number of order r, denoted by H n ( r ) {\displaystyle H_{n}^{(r)}} , is recursively defined by the relations: H...

= 1 n . {\displaystyle H_{n}^{(0)}={\frac {1}{n}}.} Then the nth hyperharmonic number of order r (r>0) is defined recursively as H n ( r ) = ∑ k = 1 n...

A mathematical constant is a key number whose value is fixed by an unambiguous definition, often referred to by a symbol (e.g., an alphabet letter), or...