A221388 - OEIS

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A221388 as a triangular array

											0
										0		0
									0		0		0
								0		1		0		0
							0		7		4		0		0
						0		38		94		13		0		0
					0		190		1450		1198		40		0		0
				0		918		20689		52320		15181		121		0		0
			0		4367		284702		2204556		1829388		191832		364		0		0
		0		20623		3856027		86673898		229338911		63358088		2420113		1093		0		0
	0

A221388 as a square array

0	0	0	0	0	0	0	0	0	0	0
0	0	1	7	38	190	918	4367	20623
0	0	4	94	1450	20689	284702	3856027
0	0	13	1198	52320	2204556	86673898
0	0	40	15181	1829388	229338911
0	0	121	191832	63358088
0	0	364	2420113
0	0	1093
0	0
0

A221388 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	0	0	1	7	38	190	918	4367	20623
		0	0	4	94	1450	20689	284702	3856027
			0	0	13	1198	52320	2204556	86673898
				0	0	40	15181	1829388	229338911
					0	0	121	191832	63358088
						0	0	364	2420113
							0	0	1093
								0	0
									0