1914208

Appears in sequences

• Number of permutations of length n within distance 2 of a fixed permutation.at n=18A002524
• Number of n X 2 array permutations with each element moving zero or one space diagonally, horizontally or vertically.at n=8A189305
• 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=17A263899