1,2

Index entries for sequences related to factorial numbers

prod_{k=1}^{k=n} {(q^k - 1) / (q - 1)}

Sequence in context: A009712 A128793 A042527 this_sequence A160292 A099125 A099742

Adjacent sequences: A015019 A015020 A015021 this_sequence A015023 A015024 A015025

sign,easy

Olivier Gerard (olivier.gerard(AT)gmail.com)