A089231 - OEIS

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A089231 as a triangular array

									1
								1		2
							1		6		6
						1		12		36		24
					1		20		120		240		120
				1		30		300		1200		1800		720
			1		42		630		4200		12600		15120		5040
		1		56		1176		11760		58800		141120		141120		40320
	1		72		2016		28224		211680		846720		1693440		1451520		362880

A089231 as a square array

1	1	1	1	1	1	1	1	1
2	6	12	20	30	42	56	72
6	36	120	300	630	1176	2016
24	240	1200	4200	11760	28224
120	1800	12600	58800	211680
720	15120	141120	846720
5040	141120	1693440
40320	1451520
362880

A089231 as an upper right triangle

1	1	1	1	1	1	1	1	1
	2	6	12	20	30	42	56	72
		6	36	120	300	630	1176	2016
			24	240	1200	4200	11760	28224
				120	1800	12600	58800	211680
					720	15120	141120	846720
						5040	141120	1693440
							40320	1451520
								362880