1,1,1,1,2,1,1,3,3,1,1,4,6,4,1,1,5,10,10,5,1,1,6,15,20,15,6,1,1,7,0,35,35,21,7,1,1,8,7,35,70,56,28,8,1,1,1,15,42,105,126,84,36,9,1,1,2,16,57,42,231,210,120,45,10,1,1,3,18,73,99,273,441,330,165,55,11,1,1,4,21,91,172,372,714,771,495,220,66,12,1