A212209 - OEIS

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A212209 as a triangular array

										1
									0		2
								0		0		3
							0		0		0		4
						0		0		0		24		5
					0		0		0		72		120		6
				0		0		0		168		6720		360		7
			0		0		0		360		935040		126360		840		8
		0		0		0		744		325061760		265035240		1128960		1680		9
	0		0		0		1512		283192323840		3322711053720		17160407040		6510000		3024		10

A212209 as a square array

1	0	0	0	0	0	0	0	0	0
2	0	0	0	0	0	0	0	0
3	0	0	0	0	0	0	0
4	24	72	168	360	744	1512
5	120	6720	935040	325061760	283192323840
6	360	126360	265035240	3322711053720
7	840	1128960	17160407040
8	1680	6510000
9	3024
10

A212209 as an upper right triangle

1	0	0	0	0	0	0	0	0	0
	2	0	0	0	0	0	0	0	0
		3	0	0	0	0	0	0	0
			4	24	72	168	360	744	1512
				5	120	6720	935040	325061760	283192323840
					6	360	126360	265035240	3322711053720
						7	840	1128960	17160407040
							8	1680	6510000
								9	3024
									10