-14824domain: ZAppears in sequencesEquivalent of the Kurepa hypothesis for left factorial.at n=8A054516Triangle read by rows: T(n,k) = (-1)^(n+1) * A000166(n) + (-1)^(k) * A000166(k) for n >= 2 and 1 <= k <= n-1.at n=24A373966