372120

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 61.at n=9A031739
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= n/3.at n=22A047199
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n-1)/3.at n=22A048011
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n-2)/3.at n=22A048022