[0,0,0,2,0,4,12,36,120,392,1288,4284,14304,48024,
162024,548872,1866416,6368464,21797776,74822636,
257513344,888439192,3072153864,10645835384,
36964041872,128584760560,448087042160,
1564065659608,5467992829120,19144550862960,
67123334707984,235658063191312,828405764175712,
2915610778184352,10273466501139232,
36239527330228044]
|