159737

Properties

Appears in sequences

• Number of permutations s of {1,2,...,n} such that |s(i)-i|>1 for each i=1,2,...,n.at n=10A001883
• T(n,k) = Number of permutations of 1..n+2*k-1 with each element displaced by at least k.at n=34A183244
• Prime intersections in a square spiral with positive integers: primes p such that there are four primes among eight nearest neighbors of p.at n=19A215470
• Number T(n,k) of permutations p of [n] such that |p(j)-j| >= k (for all j in [n]); triangle T(n,k), n >= 0, 0 <= k <= floor(n/2), read by rows.at n=32A306543
• Number T(n,k) of permutations p of [n] with no fixed points such that |{ j : |p(j)-j| = 1 }| = k; triangle T(n,k), n >= 0, 0 <= k <= n, read by rows.at n=55A323671
• Prime numbersat n=14661