A391910 - OEIS

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A391910 as a triangular array

									1
								1		2
							1		8		16
						1		26		192		384
					1		80		1696		12288		24576
				1		242		13440		272640		1966080		3932160
			1		728		101296		5222400		104816640		754974720		1509949440
		1		2186		743232		92663424		4693032960		93943234560		676457349120		1352914698240
	1		6560		5367616		1570480128		190752178176		9618377932800		192409837240320		1385384650997760		2770769301995520

A391910 as a square array

1	1	1	1	1	1	1	1	1
2	8	26	80	242	728	2186	6560
16	192	1696	13440	101296	743232	5367616
384	12288	272640	5222400	92663424	1570480128
24576	1966080	104816640	4693032960	190752178176
3932160	754974720	93943234560	9618377932800
1509949440	676457349120	192409837240320
1352914698240	1385384650997760
2770769301995520

A391910 as an upper right triangle

1	1	1	1	1	1	1	1	1
	2	8	26	80	242	728	2186	6560
		16	192	1696	13440	101296	743232	5367616
			384	12288	272640	5222400	92663424	1570480128
				24576	1966080	104816640	4693032960	190752178176
					3932160	754974720	93943234560	9618377932800
						1509949440	676457349120	192409837240320
							1352914698240	1385384650997760
								2770769301995520