20734

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n-1)/3.at n=29A048009
• Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n-2)/3.at n=29A048020
• Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n-3)/3.at n=29A048031
• Numerators of the continued fraction convergents of the decimal concatenation of the even natural numbers.at n=8A128842
• Second of two complementary trees generated by the squares; The other tree is A183420.at n=19A183421
• Number of distinct (unordered) pairs of partitions of an 8-element set that have Rand distance n.at n=17A192098
• Number of non-isomorphic strict multiset partitions of weight n.at n=10A316980