50825

Appears in sequences

• Triangle T(n,k) of k-block tricoverings of an n-set (n >= 3, k >= 4).at n=21A060487
• Number of primitive multiplex juggling sequences of length n, base state <1,1,1> and hand capacity 2.at n=7A136780
• Number of 2n-bead necklaces labeled with numbers 1..4 not allowing reversal, with neighbors differing by exactly 1.at n=13A208723