A291652 - OEIS

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A291652 as a triangular array

												1
											1		0
										1		1		0
									1		2		1		0
								1		3		3		2		0
							1		4		6		6		3		0
						1		5		10		13		11		5		0
					1		6		15		24		27		20		9		0
				1		7		21		40		55		54		38		15		0
			1		8		28		62		100		120		109		70		26		0
		1		9		36		91		168		236		258		216		129		45		0
	1		10		45		128		266		426		540		544		423		238		78		0
1		11		55		174		402		721		1035		1205		1127		824		437		135		0

A291652 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	3	6	10	15	21	28	36	45	55
0	2	6	13	24	40	62	91	128	174
0	3	11	27	55	100	168	266	402
0	5	20	54	120	236	426	721
0	9	38	109	258	540	1035
0	15	70	216	544	1205
0	26	129	423	1127
0	45	238	824
0	78	437
0	135
0

A291652 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	3	6	10	15	21	28	36	45	55
			0	2	6	13	24	40	62	91	128	174
				0	3	11	27	55	100	168	266	402
					0	5	20	54	120	236	426	721
						0	9	38	109	258	540	1035
							0	15	70	216	544	1205
								0	26	129	423	1127
									0	45	238	824
										0	78	437
											0	135
												0