A320751 - OEIS

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A320751 as a triangular array

												0
											0		0
										0		0		0
									0		0		1		0
								0		0		1		2		0
							0		0		1		4		6		0
						0		0		1		4		16		12		0
					0		0		1		4		20		52		28		0
				0		0		1		4		20		80		169		56		0
			0		0		1		4		20		86		336		520		120		0
		0		0		1		4		20		86		400		1344		1600		240		0
	0		0		1		4		20		86		409		1852		5440		4840		496		0

A320751 as a square array

0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0
0	1	1	1	1	1	1	1	1	1
0	2	4	4	4	4	4	4	4
0	6	16	20	20	20	20	20
0	12	52	80	86	86	86
0	28	169	336	400	409
0	56	520	1344	1852
0	120	1600	5440
0	240	4840
0	496
0

A320751 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0
	0	0	0	0	0	0	0	0	0	0	0
		0	1	1	1	1	1	1	1	1	1
			0	2	4	4	4	4	4	4	4
				0	6	16	20	20	20	20	20
					0	12	52	80	86	86	86
						0	28	169	336	400	409
							0	56	520	1344	1852
								0	120	1600	5440
									0	240	4840
										0	496
											0