A286180 - OEIS

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A286180 as a triangular array

													1
												1		0
											1		1		0
										1		2		0		0
									1		3		1		1		0
								1		4		3		2		0		0
							1		5		6		4		2		0		0
						1		6		10		8		6		0		1		0
					1		7		15		15		13		3		3		0		0
				1		8		21		26		25		12		6		2		0		0
			1		9		28		42		45		31		14		9		0		0		0
		1		10		36		64		77		66		35		24		3		2		1		0
	1		11		45

A286180 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1
0	1	2	3	4	5	6	7	8	9	10	11
0	0	1	3	6	10	15	21	28	36	45
0	1	2	4	8	15	26	42	64
0	0	2	6	13	25	45	77
0	0	0	3	12	31	66
0	1	3	6	14	35
0	0	2	9	24
0	0	0	3
0	0	2
0	1
0

A286180 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1
	0	1	2	3	4	5	6	7	8	9	10	11
		0	0	1	3	6	10	15	21	28	36	45
			0	1	2	4	8	15	26	42	64
				0	0	2	6	13	25	45	77
					0	0	0	3	12	31	66
						0	1	3	6	14	35
							0	0	2	9	24
								0	0	0	3
									0	0	2
										0	1
											0