A030528 - OEIS

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A030528 as a triangular array

													1
												1		1
											0		2		1
										0		1		3		1
									0		0		3		4		1
								0		0		1		6		5		1
							0		0		0		4		10		6		1
						0		0		0		1		10		15		7		1
					0		0		0		0		5		20		21		8		1
				0		0		0		0		1		15		35		28		9		1
			0		0		0		0		0		6		35		56		36		10		1
		0		0		0		0		0		1		21		70		84		45		11		1
	0		0		0		0		0		0		7		56		126		120		55		12		1

A030528 as a square array

1	1	0	0	0	0	0	0	0	0	0	0	0
1	2	1	0	0	0	0	0	0	0	0	0
1	3	3	1	0	0	0	0	0	0	0
1	4	6	4	1	0	0	0	0	0
1	5	10	10	5	1	0	0	0
1	6	15	20	15	6	1	0
1	7	21	35	35	21	7
1	8	28	56	70	56
1	9	36	84	126
1	10	45	120
1	11	55
1	12
1

A030528 as an upper right triangle

1	1	0	0	0	0	0	0	0	0	0	0	0
	1	2	1	0	0	0	0	0	0	0	0	0
		1	3	3	1	0	0	0	0	0	0	0
			1	4	6	4	1	0	0	0	0	0
				1	5	10	10	5	1	0	0	0
					1	6	15	20	15	6	1	0
						1	7	21	35	35	21	7
							1	8	28	56	70	56
								1	9	36	84	126
									1	10	45	120
										1	11	55
											1	12
												1