16588800

Appears in sequences

• Theta series of 10-dimensional lattice (C6 X SU(4,2)):C2 with minimal norm 4.at n=34A029770
• a(n) = 2^(n-3)*n^2*(n+3).at n=15A058645
• Product{<n/k>: k=1,2,...,n}, where <x> denotes the integer second nearest to x. (For x=(2h+1)/2, <x> is defined to be h, not h+1; if x is an integer, then <x> is defined to be x+1.)at n=16A075998
• Denominators of a Taylor series expansion of 1/sqrt(cosh(x)) (even powers only).at n=5A190196
• Power and multiply: distinct numbers a^b * c^d * e^f * g^h * i^j where a..j are permutations of 0..9.at n=20A266914
• a(n) is the denominator of Sum_{m=0..n}(Sum_{k=0..m} ((k+1)/(m-k+1)^2) * (Catalan(k)/(2^(2*k)))^2)*(Sum_{k=0..n-m} ((k+1)/(n-m-k+1)^2) * (Catalan(k)/(2^(2*k)))^2).at n=4A282196
• a(n) = 4^n - (n^2 + 3*n + 4)*2^(n-2).at n=12A383623
• Numbers k such that k = sigma(s(s(s(k)))) where s(k) = sigma(k)-k and sigma = A000203.at n=5A387218