7379204

Appears in sequences

• Number of perfect matchings in the twisted graph (C_4 X C_n)_{(13)(24)}.at n=11A220868
• Number of (n+1)X(3+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=2A237571
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=12A237574