55005

Appears in sequences

• Quotient of 'base-2' division described in A032533.at n=18A032534
• Smallest multiple of n using only digits 0 and 5.at n=18A078244
• Number of permutations p of {1,2,...,n} such that |p(i)-i| != 1 for all i.at n=9A078480
• Numbers k such that k and k^2 use only the digits 0, 2, 3 and 5.at n=24A136887
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 7.at n=27A136889
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 8.at n=32A136890
• Numbers whose decimal expansion contains only 0's and 5's.at n=25A169964
• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,4,2,0,1,1,1 for x=0,1,2,3,4,5,6.at n=5A197900
• Number A(n,k) of permutations p of [n] having no index i with |p(i)-i| = k; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=64A306512
• Number T(n,k) of permutations p of [n] such that |{ j : |p(j)-j| = 1 }| = k; triangle T(n,k), n >= 0, 0 <= k <= n, read by rows.at n=45A320582
• Triangle read by rows: T(n,k) is the number of unlabeled connected graphs with n nodes and packing chromatic number k, 1 <= k <= n.at n=40A363044