399848

Appears in sequences

• Number of permutations of 1..n such that |p(i)-p(i-1)|>= 4 for i>1.at n=12A179957
• Number of permutations of 1..2*n+6 with no adjacent elements within n in value.at n=3A179964
• Triangle T(n,k) giving the number of permutations of 1..n with no adjacent elements within k in value, for n >= 2, 1 <= k <= floor(n/2).at n=33A322255