A343684 - OEIS

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A343684 as a triangular array

							1
						1		2
					1		6		2
				1		8		162		2
			1		12		548		17538		2
		1		14		980		33704228		2341874005255914498		2
	1		18		1386		139300292		2661014892563136514212		87117602843745867025899669792849494278146		2

A343684 as a square array

1	1	1	1	1	1	1
2	6	8	12	14	18
2	162	548	980	1386
2	17538	33704228	139300292
2	2341874005255914498	2661014892563136514212
2	87117602843745867025899669792849494278146
2

A343684 as an upper right triangle

1	1	1	1	1	1	1
	2	6	8	12	14	18
		2	162	548	980	1386
			2	17538	33704228	139300292
				2	2341874005255914498	2661014892563136514212
					2	87117602843745867025899669792849494278146
						2