A273891 - OEIS

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A273891 as a triangular array

1

1 1

1 2 1

1 4 6 3

1 6 18 24 12

1 11 56 136 150 60

1 16 147 612 1200 1080 360

1 28 411 2619 7905 11970 8820 2520

1 44 1084 10480 46400 105840 129360 80640 20160

1 76 2979 41388 255636 821952 1481760 1512000 816480 181440

A273891 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`4`	`6`	`11`	`16`	`28`	`44`	`76`
`1`	`6`	`18`	`56`	`147`	`411`	`1084`	`2979`
`3`	`24`	`136`	`612`	`2619`	`10480`	`41388`
`12`	`150`	`1200`	`7905`	`46400`	`255636`
`60`	`1080`	`11970`	`105840`	`821952`
`360`	`8820`	`129360`	`1481760`
`2520`	`80640`	`1512000`
`20160`	`816480`
`181440`

A273891 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`4`	`6`	`11`	`16`	`28`	`44`	`76`
		`1`	`6`	`18`	`56`	`147`	`411`	`1084`	`2979`
			`3`	`24`	`136`	`612`	`2619`	`10480`	`41388`
				`12`	`150`	`1200`	`7905`	`46400`	`255636`
					`60`	`1080`	`11970`	`105840`	`821952`
						`360`	`8820`	`129360`	`1481760`
							`2520`	`80640`	`1512000`
								`20160`	`816480`
									`181440`

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Last modified June 2 19:32 EDT 2024. Contains 373045 sequences. (Running on oeis4.)