227080

Appears in sequences

• Triangle read by rows: T(n,k) = number of pairs of partitions of n that have block distance k (n >= 2, 2 <= k <= n).at n=24A193297
• Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=27A207449
• Number of connected dominating sets in the n-triangular grid graph.at n=5A288721