64069

Appears in sequences

• a(n) = T(n,n+2), array T as in A047130.at n=9A047137
• a(n) = Sum_{k=0..n} (-1)^k*floor(phi^k), where phi is the golden ratio (A001622).at n=24A277752
• Numbers that cannot be expressed as sum of at most nine repdigits numbers. One may not add two integers with the same repeated digit.at n=25A339673
• Number of unordered pairs (p,q) of distinct partitions of n such that the set of parts in q is equal to the set of parts in p.at n=31A369697