A204420 - OEIS

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A204420 as a triangular array

1

0 1

0 6 3

0 120 90 15

0 5040 4620 1260 105

0 362880 378000 132300 18900 945

0 39916800 45571680 18711000 3534300 311850 10395

0 6227020800 7628100480 3511347840 794593800 94594500 5675670 135135

A204420 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`6`	`120`	`5040`	`362880`	`39916800`	`6227020800`
`3`	`90`	`4620`	`378000`	`45571680`	`7628100480`
`15`	`1260`	`132300`	`18711000`	`3511347840`
`105`	`18900`	`3534300`	`794593800`
`945`	`311850`	`94594500`
`10395`	`5675670`
`135135`

A204420 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`6`	`120`	`5040`	`362880`	`39916800`	`6227020800`
		`3`	`90`	`4620`	`378000`	`45571680`	`7628100480`
			`15`	`1260`	`132300`	`18711000`	`3511347840`
				`105`	`18900`	`3534300`	`794593800`
					`945`	`311850`	`94594500`
						`10395`	`5675670`
							`135135`

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)