A080046 - OEIS

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A080046 as a triangular array

									1
								2		2
							3		4		3
						4		12		12		4
					5		48		144		48		5
				6		240		6912		6912		240		6
			7		1440		1658880		47775744		1658880		1440		7
		8		10080		2388787200		79254226206720		79254226206720		2388787200		10080		8
	9		80640		24078974976000

A080046 as a square array

1	2	3	4	5	6	7	8	9
2	4	12	48	240	1440	10080	80640
3	12	144	6912	1658880	2388787200	24078974976000
4	48	6912	47775744	79254226206720
5	240	1658880	79254226206720
6	1440	2388787200
7	10080
8

A080046 as an upper right triangle

1	2	3	4	5	6	7	8	9
	2	4	12	48	240	1440	10080	80640
		3	12	144	6912	1658880	2388787200	24078974976000
			4	48	6912	47775744	79254226206720
				5	240	1658880	79254226206720
					6	1440	2388787200
						7	10080
							8