35800

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 31 ones.at n=12A031799
• a(1)=2, a(n)=2*a(n-1)-floor(sqrt(a(n-1))).at n=16A125028
• Triangle read by rows T(n,k): number of undirected cycles of length k in the complete tripartite graph K_{n,n,n} (n = 1...; k = 3..3n).at n=25A296546
• Expansion of Product_{k>0} (1+k^2*x^k)^(-1/k).at n=23A303354
• a(n) is the number of free unholey polyominoes of n cells with 90-degree rotational symmetry and no other.at n=43A357647