A268367 - OEIS

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A268367 as a triangular array

1

1 0

1 4 0

1 0 12 0

1 36 216 96 0

1 0 2700 0 480 0

1 400 54000 643680 116640 5760 0

1 0 1054200 0 190188000 0 40320 0

1 4900 20991600 12243840000 269568000000 128247235200 535610880 645120 0

1 0 445365900

A268367 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`4`	`0`	`36`	`0`	`400`	`0`	`4900`	`0`
`0`	`12`	`216`	`2700`	`54000`	`1054200`	`20991600`	`445365900`
`0`	`96`	`0`	`643680`	`0`	`12243840000`
`0`	`480`	`116640`	`190188000`	`269568000000`
`0`	`5760`	`0`	`128247235200`
`0`	`40320`	`535610880`
`0`	`645120`
`0`

A268367 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`4`	`0`	`36`	`0`	`400`	`0`	`4900`	`0`
		`0`	`12`	`216`	`2700`	`54000`	`1054200`	`20991600`	`445365900`
			`0`	`96`	`0`	`643680`	`0`	`12243840000`
				`0`	`480`	`116640`	`190188000`	`269568000000`
					`0`	`5760`	`0`	`128247235200`
						`0`	`40320`	`535610880`
							`0`	`645120`
								`0`

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Last modified April 24 13:30 EDT 2024. Contains 371957 sequences. (Running on oeis4.)