A223052 - OEIS

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A223052 as a triangular array

									1
								0		0
							0		4		0
						6		44		32		0
					20		508		1682		613		0
				20		6918		95648		101573		7152		0
			70		93770		3760845		17704612		4505726		117140		0
		685		1302140		225200914		3067927359		3345698159		286019636		1613820		0
	2808		18203855		8981996365

A223052 as a square array

1	0	0	6	20	20	70	685	2808
0	4	44	508	6918	93770	1302140	18203855
0	32	1682	95648	3760845	225200914	8981996365
0	613	101573	17704612	3067927359
0	7152	4505726	3345698159
0	117140	286019636
0	1613820
0

A223052 as an upper right triangle

1	0	0	6	20	20	70	685	2808
	0	4	44	508	6918	93770	1302140	18203855
		0	32	1682	95648	3760845	225200914	8981996365
			0	613	101573	17704612	3067927359
				0	7152	4505726	3345698159
					0	117140	286019636
						0	1613820
							0