24288

Appears in sequences

• Weight distribution of ternary [ 24,12,9 ] quadratic residue code (also of Pless symmetry code).at n=7A001382
• Number of singular 2 X 2 matrices over Z(n) (i.e., with determinant = 0).at n=23A020478
• Number of triangles a queen can make (starting anywhere) on an n X n board.at n=23A030117
• Denominators of continued fraction convergents to sqrt(527).at n=7A042009
• Smallest multiple of n beginning with n and having a digit sum n, or 0 if no such number exists.at n=23A077727
• Numbers k such that sigma(k) - phi(k) is a 4th power.at n=25A115918
• Numbers of the form p^5*q*r*s where p, q, r, and s are distinct primes.at n=30A179704
• The Wiener index of the Dutch windmill graph D(5,n) (n>=1).at n=31A180579
• Molecular topological indices of the cocktail party graphs.at n=11A181773
• Records in A224796.at n=39A224719
• Numbers n having at least two distinct symmetrical pairs of divisors (a, b) and (b', a') such that n = a*b = b'*a' with a' = reverse(a) and b' = reverse(b).at n=36A228164
• Coefficients of mock modular form H_1^(3).at n=11A256049
• a(n) = n*(n+1)*(13*n+2)/6.at n=22A257093
• Nonnegative integers n such that in balanced ternary representation the number of occurrences of each trit doubles when n is squared.at n=34A257867
• a(n) is the number of 2 X 2 matrices over Z_p with determinant in {1,-1} where p = prime(n).at n=8A262354
• Number of orthogonal 3 X 3 matrices over the ring Z/nZ.at n=22A264083
• Number of 2 X 2 matrices with entries in {0,1,...,n} with determinant = permanent with no entries repeated.at n=24A280058
• Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1 <= k <= m positions can be picked in an m X m square grid such that the picked positions have a central symmetry.at n=26A291717
• The second Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.2).at n=18A292345
• Expansion of ( 1 + 9 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k))^2 )^(1/3).at n=11A382336