26308
domain: N
Appears in sequences
- Endpoints (leaves) in rooted trees with n nodes.at n=11A003227
- a(n) = floor( n*(n-1)*(n-2)*(n-3)/25 ).at n=30A011935
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 84 ones.at n=34A031852
- Sum of the sizes of the Durfee squares of all partitions of n.at n=32A115995
- The number of permutations p of {1,...,n} such that |p(i)-p(i+1)| is in {3,4} for all i from 1 to n-1.at n=30A174706
- Total sum of nonprime parts in all partitions of n.at n=25A194545
- Sums of the next n consecutive nonsquare integers.at n=37A275740
- Numbers k such that both A381019(k) and A381019(k+1) are composite.at n=5A381120