{1},
{2, 2, 2},
{3, 6, 10, 6, 3},
{4, 12, 28, 32, 28, 12, 4},
{5, 20, 60, 100, 126, 100, 60, 20, 5},
{6, 30, 110, 240, 396, 452, 396, 240, 110, 30, 6},
{7, 42, 182, 490, 1001, 1484, 1716, 1484, 1001, 490, 182, 42, 7},
{8, 56, 280, 896, 2184, 3976, 5720, 6400, 5720, 3976, 2184, 896, 280, 56, 8},