Equivalent of the Kurepa hypothesis for left factorial.

A052201

Equivalent of the Kurepa hypothesis for left factorial.

Terms

    a(0) =4a(1) =15a(2) =48a(3) =175a(4) =816a(5) =4851a(6) =34960a(7) =292743a(8) =2774040a(9) =29251651a(10) =339184776a(11) =4285584615a(12) =58571107168a(13) =860622082035

External references