From second moments of unfriendly seating arrangement problem around a circular table with n seats.

A239888

From second moments of unfriendly seating arrangement problem around a circular table with n seats.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =8a(4) =48a(5) =464a(6) =4000a(7) =40032a(8) =424704a(9) =4927232a(10) =61553664a(11) =827632640a(12) =11914946560a(13) =183014995968

External references