173233

Appears in sequences

• n-th diagonal sum of right justified array T given by A027960.at n=24A027976
• a(n+3) = 3*a(n+2) + 5*a(n+1) + a(n), a(0) = 0, a(1) = 1, a(2) = 8.at n=9A110527
• Number of regions in a regular 2n-gon when all vertices are connect by straight lines except for the n lines joining diametrically opposite vertices.at n=23A368813