1,2

Index entries for sequences related to factorial numbers

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

Sequence in context: A075598 A105230 A108535 this_sequence A032391 A139978 A009082

Adjacent sequences: A015016 A015017 A015018 this_sequence A015020 A015021 A015022

sign,easy

Olivier Gerard (ogerard(AT)ext.jussieu.fr)