A247500 - OEIS

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A247500 as a triangular array

										1
									1		1
								2		3		1
							6		12		6		1
						24		60		40		10		1
					120		360		300		100		15		1
				720		2520		2520		1050		210		21		1
			5040		20160		23520		11760		2940		392		28		1
		40320		181440		241920		141120		42336		7056		672		36		1
	362880		1814400		2721600		1814400		635040		127008		15120		1080		45		1

A247500 as a square array

1	1	2	6	24	120	720	5040	40320	362880
1	3	12	60	360	2520	20160	181440	1814400
1	6	40	300	2520	23520	241920	2721600
1	10	100	1050	11760	141120	1814400
1	15	210	2940	42336	635040
1	21	392	7056	127008
1	28	672	15120
1	36	1080
1	45
1

A247500 as an upper right triangle

1	1	2	6	24	120	720	5040	40320	362880
	1	3	12	60	360	2520	20160	181440	1814400
		1	6	40	300	2520	23520	241920	2721600
			1	10	100	1050	11760	141120	1814400
				1	15	210	2940	42336	635040
					1	21	392	7056	127008
						1	28	672	15120
							1	36	1080
								1	45
									1