5963776

Appears in sequences

• Numbers n such that uphi(uphi(n)) = n/2.at n=16A071008
• a(n) = S1(n,2), where S1(n, t) = Sum_{k=0..n} (k^t * Sum_{j=0..k} binomial(n,j)).at n=13A089659
• Smallest Smith number with n prime factors.at n=16A104168
• a(n) = (n-4)*(n-3)*2^(n-2).at n=17A181407
• a(n) = (3*n^2 - 3*n + 8)*2^(n - 3).at n=16A300451
• Number of 6-cycles in the n-folded cube graph.at n=12A301459
• Number of subsets of {1..n} that contain exactly three odd numbers.at n=27A331408
• a(n) = Sum_{1 <= x_1, x_2, x_3, x_4 <= n} gcd(x_1, x_2, x_3, x_4, n)^4.at n=31A372931