A180397 - OEIS

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A180397 as a triangular array

1

2 0

6 1 0

24 15 0 0

120 276 20 0 0

720 7140 2024 15 0 0

5040 258840 280840 10626 6 0 0

40320 12698280 61949040 8214570 42504 1 0 0

362880 812831040 21324644880 11104365420 190578024 134596 0 0 0

3628800

A180397 as a square array

`1`	`2`	`6`	`24`	`120`	`720`	`5040`	`40320`	`362880`	`3628800`
`0`	`1`	`15`	`276`	`7140`	`258840`	`12698280`	`812831040`
`0`	`0`	`20`	`2024`	`280840`	`61949040`	`21324644880`
`0`	`0`	`15`	`10626`	`8214570`	`11104365420`
`0`	`0`	`6`	`42504`	`190578024`
`0`	`0`	`1`	`134596`
`0`	`0`	`0`
`0`	`0`
`0`

A180397 as an upper right triangle

`1`	`2`	`6`	`24`	`120`	`720`	`5040`	`40320`	`362880`	`3628800`
	`0`	`1`	`15`	`276`	`7140`	`258840`	`12698280`	`812831040`
		`0`	`0`	`20`	`2024`	`280840`	`61949040`	`21324644880`
			`0`	`0`	`15`	`10626`	`8214570`	`11104365420`
				`0`	`0`	`6`	`42504`	`190578024`
					`0`	`0`	`1`	`134596`
						`0`	`0`	`0`
							`0`	`0`
								`0`

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Last modified May 13 09:38 EDT 2024. Contains 372504 sequences. (Running on oeis4.)