499062500

Appears in sequences

• Number of zig-zag paths from top to bottom of a rectangle of width 9 with n rows whose color is that of the top right corner.at n=29A153363
• Number of zig-zag paths from top to bottom of a rectangle of width 9 with n rows whose color is not that of the top right corner.at n=29A153364
• Number of zig-zag paths from top to bottom of a rectangle of width 9 with 2*n rows whose color is that of the top right corner.at n=14A153365