121280

Appears in sequences

• Triangle of coefficients of the Pollaczek polynomials with a=1, b=1 multiplied by n! to make then integers.at n=22A136454
• Number of (n+1)X7 0..1 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors.at n=16A205070