46080

Appears in sequences

• Order of the group SL(2,Z_n).at n=39A000056
• Double factorial of even numbers: (2n)!! = 2^n*n!.at n=6A000165
• Number of invertible 2 X 2 matrices mod n.at n=19A000252
• Sorted list of orders of Weyl groups of types A_n, B_n, D_n, E_n, F_4, G_2.at n=18A001217
• Smallest number with 2n divisors.at n=32A003680
• Ratios of successive terms are 1,2,2,2,3,4,4,4,5,6,6,6,7,...at n=10A004528
• Double factorials n!!: a(n) = n*a(n-2) for n > 1, a(0) = a(1) = 1.at n=12A006882
• Smallest k such that k*n is a double factorial.at n=13A007919
• Theta series of {D_10}* lattice.at n=13A008426
• Order of 2^n X 2^n unitary group H_n acting on Siegel modular forms.at n=2A027638
• Number of solutions to non-attacking rooks problem on n X n board that are invariant under 180-degree rotation.at n=12A037223
• Number of solutions to non-attacking rooks problem on n X n board that are invariant under 180-degree rotation.at n=13A037223
• Triangle read by rows: (i,j)-th entry is binomial(i,j)*3^(i-j)*8^j.at n=18A038226
• Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*3^j.at n=17A038281
• Least number with exactly n divisors that are at most its square root.at n=32A038549
• Signed double Pochhammer triangle: expansion of x(x-2)(x-4)..(x-2n+2).at n=21A039683
• Partial products of pi(n), A000720.at n=10A046993
• 4*Denominator of S(n)/Pi^n, where S(n) = Sum_{k=-inf..+inf} ((4k+1)^(-n)).at n=6A050971
• E.g.f. (1+x^2-2x^3)/(1-2x).at n=6A052576
• Expansion of e.g.f. (1 + x^3 - 2*x^4)/(1-2*x).at n=6A052694