A052314 Triangle: Matrix square of A051168.
1, 2, 1, 1, 1, 0, 1, 2, 0, 0, 1, 3, 1, 0, 0, 1, 6, 3, 1, 0, 0, 1, 9, 7, 4, 1, 0, 0, 1, 18, 18, 14, 5, 1, 0, 0, 1, 30, 38, 36, 18, 6, 1, 0, 0, 1, 56, 84, 96, 60, 28, 7, 1, 0, 0, 1, 99, 174, 227, 171, 98, 33, 8, 1, 0, 0, 1, 186, 372, 552, 486, 332, 140, 47, 9, 1, 0, 0, 1, 335, 755
Offset: 0
Examples
1; 2,1; 1,1,0; 1,2,0,0; 1,3,1,0,0; ...