24576

Appears in sequences

• Order of the group SL(2,Z_n).at n=31A000056
• Number of invertible 2 X 2 matrices mod n.at n=15A000252
• Number of permutations of length n with exactly two valleys.at n=3A000487
• Numbers that are not the sum of 4 nonzero squares.at n=28A000534
• a(n) = n*2^(n-1).at n=12A001787
• a(n) = 6*4^n.at n=6A002023
• Values of phi(k) when phi(k) = phi(k+1).at n=28A003275
• Number of Hamiltonian paths in K_3 X P_n.at n=6A003689
• Expansion of g.f. (1+x)/(1-2*x).at n=14A003945
• Theta series of 12-dimensional unimodular lattice {D_12}^{+}.at n=5A004533
• Numbers that are the sum of 12 positive 11th powers.at n=12A004823
• Length of longest trail (i.e., path with all distinct edges) on the edges of an n-cube.at n=12A005985
• Numbers that have a unique partition into a sum of four nonnegative squares.at n=27A006431
• McKay-Thompson series of class 8A for Monster.at n=9A007265
• a(n) = 3*2^n.at n=13A007283
• MU-numbers: next term is uniquely the product of 2 earlier terms.at n=28A007335
• Triangle read by rows: T(n,k) (n >= 1, 0 <= k <= ceiling(n/2)-1) = number of permutations of [n] with k peaks.at n=18A008303
• Duplicate of A004533.at n=5A014745
• a(n) = n*4^n.at n=6A018215
• Numbers of form 4^i*6^j, with i, j >= 0.at n=27A025618