1399176

Appears in sequences

• Number of distinct n X 2 toroidal 0..3 arrays.at n=5A184273
• Table read by antidiagonals: T(n,k) = number of distinct n X k toroidal 0..3 arrays.at n=22A184277
• Table read by antidiagonals: T(n,k) = number of distinct n X k toroidal 0..3 arrays.at n=26A184277
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to vertical reflections by two tiles that are each fixed under vertical reflection.at n=41A368260
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to vertical reflection by an asymmetric tile.at n=41A368261