n: 40 m: 487 packed: 13 density: 0 nodes: 0 solveTime: 8520 buildTime: 140 solved: true
{0,1,15}
{2,3,5}
{4,8,10}
{6,20,30}
{7,34,38}
{9,32,36}
{11,28,37}
{12,27,31}
{13,18,19}
{14,16,24}
{17,29,39}
{22,25,35}
{23,26,33}