A261964 - OEIS

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A261964 as a triangular array

1

1 1

2 4 2

6 56 56 6

24 1712 9408 1712 24

120 92800 4948992 4948992 92800 120

720 7918592 6085088256 63352393728 6085088256 7918592 720

5040 984237056 14782316470272 2472100837326848 2472100837326848 14782316470272 984237056 5040

A261964 as a square array

`1`	`1`	`2`	`6`	`24`	`120`	`720`	`5040`
`1`	`4`	`56`	`1712`	`92800`	`7918592`	`984237056`
`2`	`56`	`9408`	`4948992`	`6085088256`	`14782316470272`
`6`	`1712`	`4948992`	`63352393728`	`2472100837326848`
`24`	`92800`	`6085088256`	`2472100837326848`
`120`	`7918592`	`14782316470272`
`720`	`984237056`
`5040`

A261964 as an upper right triangle

`1`	`1`	`2`	`6`	`24`	`120`	`720`	`5040`
	`1`	`4`	`56`	`1712`	`92800`	`7918592`	`984237056`
		`2`	`56`	`9408`	`4948992`	`6085088256`	`14782316470272`
			`6`	`1712`	`4948992`	`63352393728`	`2472100837326848`
				`24`	`92800`	`6085088256`	`2472100837326848`
					`120`	`7918592`	`14782316470272`
						`720`	`984237056`
							`5040`

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)