1,2

Index entries for sequences related to factorial numbers

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

Sequence in context: A049405 A049406 A104009 this_sequence A011920 A004823 A009063

Adjacent sequences: A015025 A015026 A015027 this_sequence A015029 A015030 A015031

sign,easy

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