A258758 - OEIS

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A258758 as a triangular array

									1
								1		1
							3		6		3
						10		30		30		10
					35		140		210		140		35
				126		630		1260		1260		630		126
			462		2772		6930		9240		6930		2772		462
		1716		12012		36036		60060		60060		36036		12012		1716
	6435		51480		180180		360360		450450		360360		180180		51480

A258758 as a square array

1	1	3	10	35	126	462	1716	6435
1	6	30	140	630	2772	12012	51480
3	30	210	1260	6930	36036	180180
10	140	1260	9240	60060	360360
35	630	6930	60060	450450
126	2772	36036	360360
462	12012	180180
1716	51480

A258758 as an upper right triangle

1	1	3	10	35	126	462	1716	6435
	1	6	30	140	630	2772	12012	51480
		3	30	210	1260	6930	36036	180180
			10	140	1260	9240	60060	360360
				35	630	6930	60060	450450
					126	2772	36036	360360
						462	12012	180180
							1716	51480