A090657 - OEIS

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A090657 as a triangular array

1

0 1

0 2 2

0 3 18 6

0 4 84 144 24

0 5 300 1500 1200 120

0 6 930 10800 23400 10800 720

0 7 2646 63210 294000 352800 105840 5040

0 8 7112 324576 2857680 7056000 5362560 1128960 40320

A090657 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`
`2`	`18`	`84`	`300`	`930`	`2646`	`7112`
`6`	`144`	`1500`	`10800`	`63210`	`324576`
`24`	`1200`	`23400`	`294000`	`2857680`
`120`	`10800`	`352800`	`7056000`
`720`	`105840`	`5362560`
`5040`	`1128960`
`40320`

A090657 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`
		`2`	`18`	`84`	`300`	`930`	`2646`	`7112`
			`6`	`144`	`1500`	`10800`	`63210`	`324576`
				`24`	`1200`	`23400`	`294000`	`2857680`
					`120`	`10800`	`352800`	`7056000`
						`720`	`105840`	`5362560`
							`5040`	`1128960`
								`40320`

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Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)