18554

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 63.at n=25A020402
• Fibonacci sequence beginning 1, 11.at n=17A022101
• Numbers such that n^2 = 29 mod 1193.at n=31A165989
• Number of 3-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-queen's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions.at n=18A187858
• Number of (n+1) X (4+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.at n=9A250765
• Least positive integer k such that prime(prime(prime(k)))+ prime(prime(prime(k*n))) = 2*prime(prime(p)) for some prime p.at n=22A261583
• Row sums of A281348.at n=8A281347
• Number of locally stable rooted identity trees with n nodes, meaning no branch is a subset of any other branch of the same root.at n=21A316474
• Number of length-n binary words having no palindromes of length > 5 as contiguous subwords.at n=23A329824
• Number of unital quantales on n elements, up to isomorphism.at n=6A354495