52200

Appears in sequences

• Number of possible rook moves on an n X n chessboard.at n=29A035006
• a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^3.at n=29A053819
• Non-palindromic numbers such that either x=q1.Rev[x] or Rev[x]=q2.x, where R[x]=A004086[x] and q1 or q2 are integers not divisible by 10.at n=22A071687
• Numbers with prime factorization p*q^2*r^2*s^3 (where p, q, r, s are distinct primes).at n=19A190109
• Number of 2 X 2 matrices having all terms in {1,...,n} and odd determinant.at n=18A211065
• Number of 2 X 2 matrices having all terms in {-n,...,0,..,n} and odd determinant.at n=9A211155
• Triangle read by rows: T(n,k) is the number of subpermutations of an n-set whose orbits are each of size at most k, and without fixed points. Equivalently, T(n,k) is the number of partial derangements of an n-set each of whose orbits is of size at most k.at n=33A261762
• Numbers k such that k = Product (p_j^e_j) = Product (pi(p_j)*p_j), where pi() = A000720.at n=31A304194
• a(n) = 1*2*3*4*5*6*7*8 + 9*10*11*12*13*14*15*16 + 17*18*19*20*21*22*23*24 + ... + (up to n).at n=11A319209
• Numbers that are the sum of three positive cubes in four or more ways.at n=3A343968
• Numbers that are the sum of three positive cubes in exactly 4 ways.at n=3A343969
• Numbers k for which A306927(k) [= A001615(k)-k] is a multiple of A344705(k) [= A001615(k)-A001065(k)], and their quotient is nonnegative.at n=49A344700
• Numbers that are not palindromes even after removing trailing zeros and are divisible by their reverses.at n=25A345361
• a(n) is the smallest positive integer k for which there is an identity of the form k*x = Sum_{i=1..m} k_i*g_i(x)^n where k_1, ..., k_m are in Z and g_1(x), ..., g_m(x) are in Z[x].at n=29A370252