A286957 - OEIS

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A286957 as a triangular array

													1
												1		0
											1		1		0
										1		2		1		0
									1		3		2		2		0
								1		4		3		6		2		0
							1		5		4		12		6		3		0
						1		6		5		20		12		10		4		0
					1		7		6		30		20		21		18		5		0
				1		8		7		42		30		36		48		22		6		0
			1		9		8		56		42		55		100		57		30		8		0
		1		10		9		72		56		78		180		116		84		42		10		0
	1		11		10		90		72		105		294		205		180		120		66		12		0

A286957 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	1	2	3	4	5	6	7	8	9	10
0	2	6	12	20	30	42	56	72	90
0	2	6	12	20	30	42	56	72
0	3	10	21	36	55	78	105
0	4	18	48	100	180	294
0	5	22	57	116	205
0	6	30	84	180
0	8	42	120
0	10	66
0	12
0

A286957 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	1	2	3	4	5	6	7	8	9	10
			0	2	6	12	20	30	42	56	72	90
				0	2	6	12	20	30	42	56	72
					0	3	10	21	36	55	78	105
						0	4	18	48	100	180	294
							0	5	22	57	116	205
								0	6	30	84	180
									0	8	42	120
										0	10	66
											0	12
												0