28606

Appears in sequences

• a(n) = A027052(n, 2n-9).at n=9A027065
• Consecutive terms of A065966 which are also consecutive integers.at n=40A065976
• Number of Bottleneck-Monge matrices with 3 rows. In the formula below, P=3.at n=7A070051
• Number of Bottleneck-Monge matrices with 8 rows.at n=2A070056
• E.g.f. exp(x+x^2/2+x^4/24).at n=10A190452
• Triangle read by rows: T(n,k) is the number of weakly connected oriented graphs on n unlabeled nodes with k arcs, n >= 1, k = 0..n*(n-1)/2.at n=50A350734
• Triangle read by rows: T(n,k) is the number of unlabeled weakly connected oriented graphs with n arcs and k vertices, k = 1..n+1.at n=51A350914