A281988 - OEIS

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A281988 as a triangular array

0

0 0

0 0 0

0 2 2 0

0 16 121 16 0

0 88 1054 1054 88 0

0 432 7053 10852 7053 432 0

0 2008 41118 89414 89414 41118 2008 0

0 8992 226025 659508 938730 659508 226025 8992 0

0 39200 1189600 4668914 8777256 8777256

A281988 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`0`	`2`	`16`	`88`	`432`	`2008`	`8992`	`39200`
`0`	`2`	`121`	`1054`	`7053`	`41118`	`226025`	`1189600`
`0`	`16`	`1054`	`10852`	`89414`	`659508`	`4668914`
`0`	`88`	`7053`	`89414`	`938730`	`8777256`
`0`	`432`	`41118`	`659508`	`8777256`
`0`	`2008`	`226025`
`0`	`8992`
`0`

A281988 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`0`	`0`	`2`	`16`	`88`	`432`	`2008`	`8992`	`39200`
		`0`	`2`	`121`	`1054`	`7053`	`41118`	`226025`	`1189600`
			`0`	`16`	`1054`	`10852`	`89414`	`659508`	`4668914`
				`0`	`88`	`7053`	`89414`	`938730`	`8777256`
					`0`	`432`	`41118`	`659508`	`8777256`
						`0`	`2008`	`226025`
							`0`	`8992`
								`0`

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Last modified April 25 16:23 EDT 2024. Contains 371989 sequences. (Running on oeis4.)