A264704 - OEIS

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A264704 as a triangular array

									1
								1		1
							2		3		1
						4		15		6		1
					12		212		296		36		1
				36		3712		26304		9024		288		1
			144		96256		4689792		7708608		492480		2240		2
		576		3423168		1263257856		15216574464		4137827328		30233088		20736		4
	2880		158521536		603321053184

A264704 as a square array

1	1	2	4	12	36	144	576	2880
1	3	15	212	3712	96256	3423168	158521536
1	6	296	26304	4689792	1263257856	603321053184
1	36	9024	7708608	15216574464
1	288	492480	4137827328
1	2240	30233088
2	20736
4

A264704 as an upper right triangle

1	1	2	4	12	36	144	576	2880
	1	3	15	212	3712	96256	3423168	158521536
		1	6	296	26304	4689792	1263257856	603321053184
			1	36	9024	7708608	15216574464
				1	288	492480	4137827328
					1	2240	30233088
						2	20736
							4