A264709 - OEIS

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A264709 as a triangular array

									1
								1		1
							1		1		1
						2		8		4		1
					4		84		152		28		1
				8		800		8064		4544		176		1
			24		15360		789696		1555200		202176		1600		2
		72		357696		120512448		2248445952		963726336		10964160		16128		4
	216		6873984		29928517632		3889709973504

A264709 as a square array

1	1	1	2	4	8	24	72	216
1	1	8	84	800	15360	357696	6873984
1	4	152	8064	789696	120512448	29928517632
1	28	4544	1555200	2248445952	3889709973504
1	176	202176	963726336
1	1600	10964160
2	16128
4

A264709 as an upper right triangle

1	1	1	2	4	8	24	72	216
	1	1	8	84	800	15360	357696	6873984
		1	4	152	8064	789696	120512448	29928517632
			1	28	4544	1555200	2248445952	3889709973504
				1	176	202176	963726336
					1	1600	10964160
						2	16128
							4