45738

Appears in sequences

• Number of non-monotone maps from 1,...,n to 1,...,n.at n=6A056174
• Arithmetic derivative of cubes: a(n) = 3*n^2*A003415(n).at n=32A068721
• Number of n-tuples of elements e_1,e_2,...,e_n in the symmetric group S_3 such that the subgroup generated by e_1,e_2,...,e_n is S_3.at n=5A071539
• Numbers with no 1's in their base-3, base-4, and base-5 expansions. Intersection of A005823, A023709, and A023725.at n=20A117482
• Number of permutations p() of 1..n+3 with centered difference p(i+1)-p(i-1) < 0 exactly twice.at n=5A180880
• Number of permutations p() of 1..n+6 with centered difference p(i+1)-p(i-1) < 0 exactly 5 times.at n=2A180883
• Array read by antidiagonals: T(n,k)=number of permutations p() of 1..n+k with centered difference p(i+1)-p(i-1) < 0 exactly k-1 times.at n=30A180887
• Array read by antidiagonals: T(n,k)=number of permutations p() of 1..n+k with centered difference p(i+1)-p(i-1) < 0 exactly k-1 times.at n=33A180887
• Number of non-monotonic functions from [k] to [n-k].at n=31A189711
• Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=4A207367
• Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=6A207370
• Number of n X 2 nonnegative integer arrays with upper left 0 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.at n=27A252932
• a(n) = 972*n^2 - 270*n (n>=1).at n=6A305071
• Numbers k such that k is a multiple of A005941(k).at n=57A364550