A125901 - OEIS

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A125901 as a triangular array

										1
									2		1
								6		3		2
							12		12		4		6
						60		60		20		30		12
					20		20		60		5		4		60
				140		140		420		35		28		420		20
			280		280		840		280		56		840		40		140
		2520		2520		2520		2520		504		2520		360		1260		280
	2520		2520		2520		2520		2520		2520		360		1260		280		2520
27720		27720

A125901 as a square array

1	2	6	12	60	20	140	280	2520	2520	27720
1	3	12	60	20	140	280	2520	2520	27720
2	4	20	60	420	840	2520	2520
6	30	5	35	280	2520	2520
12	4	28	56	504	2520
60	420	840	2520	2520
20	40	360	360
140	1260	1260
280	280
2520

A125901 as an upper right triangle

1	2	6	12	60	20	140	280	2520	2520	27720
	1	3	12	60	20	140	280	2520	2520	27720
		2	4	20	60	420	840	2520	2520
			6	30	5	35	280	2520	2520
				12	4	28	56	504	2520
					60	420	840	2520	2520
						20	40	360	360
							140	1260	1260
								280	280
									2520