311424

Appears in sequences

• Number of ways to lace a shoe that has n pairs of eyelets, assuming the lacing satisfies certain conditions.at n=4A078629
• Binomial transform of abs(A134967).at n=16A135035
• Number of circular permutations of length n with no consecutive triples i,i+2,i+4 or i,i-2,i-4.at n=5A174078