A112003 One fourth of fifth column (k=4) of triangle A111999.

-30, 1827, -75915, 2774695, -97362265, 3410657250, -121647896370, 4464233824050, -169525943987400, 6681570663692925, -273715584240223125, 11660420923428902625, -516518847915111916875, 23780637468174359272500, -1137205925185934836732500

Offset: 0

Author

Wolfdieter Lang, Sep 12 2005

Keywords

• sign
• easy

Formula

a(n)=A111999(n+5, 4)/4, n>=0.