49127

Appears in sequences

• Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 18 (most significant digit on right and removing all least significant zeros before concatenation).at n=4A029535
• Numerator of Sum(k^mu(k): 1<=k<=n), where mu is the Moebius function (A008683).at n=10A080306
• a(1) = 23, a(2) = 71, a(n) = 3*a(n-1) - 2*a(n-2) for n>2.at n=10A248877
• Number of unoriented colorings of the edges of a regular 4-dimensional orthoplex with n available colors.at n=1A331355
• The sum of the sizes of the largest fixed points over all compositions of n.at n=15A335713
• Array read by descending antidiagonals: T(n,k) is the number of unoriented colorings of the edges of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors.at n=13A337412
• Array read by descending antidiagonals: T(n,k) is the number of unoriented colorings of the square faces of a regular n-dimensional orthotope (hypercube) using k or fewer colors.at n=8A337888