A152815 - OEIS

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A152815 as a triangular array

														1
													1		0
												1		1		0
											1		1		0		0
										1		2		1		0		0
									1		2		1		0		0		0
								1		3		3		1		0		0		0
							1		3		3		1		0		0		0		0
						1		4		6		4		1		0		0		0		0
					1		4		6		4		1		0		0		0		0		0
				1		5		10		10		5		1		0		0		0		0		0
			1		5		10		10		5		1		0		0		0		0		0		0
		1		6		15		20		15		6		1		0		0		0		0		0		0
	1		6		15		20		15		6		1		0		0		0

A152815 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1	1
0	1	1	2	2	3	3	4	4	5	5	6	6
0	0	1	1	3	3	6	6	10	10	15	15
0	0	0	1	1	4	4	10	10	20	20
0	0	0	0	1	1	5	5	15	15
0	0	0	0	0	1	1	6	6
0	0	0	0	0	0	1	1
0	0	0	0	0	0	0
0	0	0	0	0	0
0	0	0	0	0
0	0	0
0	0
0

A152815 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1	1
	0	1	1	2	2	3	3	4	4	5	5	6	6
		0	0	1	1	3	3	6	6	10	10	15	15
			0	0	0	1	1	4	4	10	10	20	20
				0	0	0	0	1	1	5	5	15	15
					0	0	0	0	0	1	1	6	6
						0	0	0	0	0	0	1	1
							0	0	0	0	0	0	0
								0	0	0	0	0	0
									0	0	0	0	0
										0	0	0
											0	0
												0