290932

Appears in sequences

• Number of (n+1) X (2+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).at n=9A235292
• Number of (n+1) X (10+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).at n=1A235300
• a(n) is the number of trivial braids on 3 strands with 2*n crossings.at n=6A354602