A305541 - OEIS

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A305541 as a triangular array

0

0 0

0 0 1

0 0 3 3

0 0 12 24 12

0 1 35 124 150 60

0 2 111 588 1200 1080 360

0 6 318 2487 7845 11970 8820 2520

0 14 934 10240 46280 105840 129360 80640 20160

0 30 2634 40488 254676 821592 1481760 1512000 816480 181440

0 62 7503 158220 1344900 5873760 14658840 21772800 19051200 9072000 1814400

A305541 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`0`	`0`	`0`	`1`	`2`	`6`	`14`	`30`	`62`
`1`	`3`	`12`	`35`	`111`	`318`	`934`	`2634`	`7503`
`3`	`24`	`124`	`588`	`2487`	`10240`	`40488`	`158220`
`12`	`150`	`1200`	`7845`	`46280`	`254676`	`1344900`
`60`	`1080`	`11970`	`105840`	`821592`	`5873760`
`360`	`8820`	`129360`	`1481760`	`14658840`
`2520`	`80640`	`1512000`	`21772800`
`20160`	`816480`	`19051200`
`181440`	`9072000`
`1814400`

A305541 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`0`	`0`	`0`	`0`	`1`	`2`	`6`	`14`	`30`	`62`
		`1`	`3`	`12`	`35`	`111`	`318`	`934`	`2634`	`7503`
			`3`	`24`	`124`	`588`	`2487`	`10240`	`40488`	`158220`
				`12`	`150`	`1200`	`7845`	`46280`	`254676`	`1344900`
					`60`	`1080`	`11970`	`105840`	`821592`	`5873760`
						`360`	`8820`	`129360`	`1481760`	`14658840`
							`2520`	`80640`	`1512000`	`21772800`
								`20160`	`816480`	`19051200`
									`181440`	`9072000`
										`1814400`

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Last modified September 15 19:46 EDT 2024. Contains 375954 sequences. (Running on oeis4.)