189580

Appears in sequences

• Sum of squares of first n positive integers congruent to 1 mod 3.at n=39A024215
• Number of open knight's tour diagrams of a 3 X n chessboard that are symmetric under 180-degree rotation and have "type B": the endpoints occur in different columns and disagree in color with the cells in the nearest corner.at n=22A169775
• Number of (n+1)X5 0..1 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=4A204035
• Number of (n+1)X6 0..1 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=3A204036
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=31A204039
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=32A204039