1,2

Index entries for sequences related to factorial numbers

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

Sequence in context: A156910 A018803 A132695 this_sequence A128087 A139225 A078675

Adjacent sequences: A015012 A015013 A015014 this_sequence A015016 A015017 A015018

sign,easy

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