A229578 - OEIS

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A229578 as a triangular array

										0
									1		1
								2		6		2
							6		26		26		6
						20		80		76		80		20
					70		216		171		171		216		70
				246		544		362		312		362		544		246
			854		1312		757		568		568		757		1312		854
		2920		3072		1584		1064		924		1064		1584		3072		2920
	9846		7040		3323		2064		1576		1576		2064		3323		7040

A229578 as a square array

0	1	2	6	20	70	246	854	2920	9846
1	6	26	80	216	544	1312	3072	7040
2	26	76	171	362	757	1584	3323
6	80	171	312	568	1064	2064
20	216	362	568	924	1576
70	544	757	1064	1576
246	1312	1584	2064
854	3072	3323
2920	7040

A229578 as an upper right triangle

0	1	2	6	20	70	246	854	2920	9846
	1	6	26	80	216	544	1312	3072	7040
		2	26	76	171	362	757	1584	3323
			6	80	171	312	568	1064	2064
				20	216	362	568	924	1576
					70	544	757	1064	1576
						246	1312	1584	2064
							854	3072	3323
								2920	7040