134200

Appears in sequences

• Third row of Pascal-(1,2,1) array A081577.at n=31A081583
• Partial sums of A006000.at n=31A133252
• Number of intersections of diagonals in the exterior of a regular n-gon.at n=37A211382
• Number of defective 4-colorings of an n X 7 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..3 order.at n=11A229577