820296

Appears in sequences

• Number of permutations of length n within distance 2 of a fixed permutation.at n=17A002524
• Column 1 of triangle A118032, where column 1 of the matrix square of A118032 forms a bisection of this sequence.at n=27A118034
• Column 1 of triangle A118045; also equals a bisection of A118034, which is column 1 of A118032.at n=13A118047
• Number of length n arrays of permutations of 0..n-1 with each element moved by -2 to 2 places and the total absolute value of displacements not greater than 2*(n-1).at n=16A263899