A221400 - OEIS

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A221400 as a triangular array

										0
									0		0
								0		1		0
							0		6		7		0
						0		56		30		38		0
					0		324		2110		144		190		0
				0		2196		26374		89173		672		918		0
			0		13328		681300		2294372		3658806		3108		4367		0
		0		83680		11554698		247200529		197166544		149231797		14328		20623		0
	0		512752		239213277

A221400 as a square array

0	0	0	0	0	0	0	0	0	0
0	1	6	56	324	2196	13328	83680	512752
0	7	30	2110	26374	681300	11554698	239213277
0	38	144	89173	2294372	247200529
0	190	672	3658806	197166544
0	918	3108	149231797
0	4367	14328
0	20623
0

A221400 as an upper right triangle

0	0	0	0	0	0	0	0	0	0
	0	1	6	56	324	2196	13328	83680	512752
		0	7	30	2110	26374	681300	11554698	239213277
			0	38	144	89173	2294372	247200529
				0	190	672	3658806	197166544
					0	918	3108	149231797
						0	4367	14328
							0	20623
								0