A327751 - OEIS

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A327751 as a triangular array

1

0 1

0 0 1

0 2 0 1

0 0 8 0 1

0 6 24 26 0 1

0 0 216 264 80 0 1

0 20 1200 5646 2160 242 0 1

0 0 8840 101520 121200 16080 728 0 1

0 70 58800 2103740 6136800 2410326 115464 2186 0 1

A327751 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`0`	`2`	`0`	`6`	`0`	`20`	`0`	`70`
`1`	`0`	`8`	`24`	`216`	`1200`	`8840`	`58800`
`1`	`0`	`26`	`264`	`5646`	`101520`	`2103740`
`1`	`0`	`80`	`2160`	`121200`	`6136800`
`1`	`0`	`242`	`16080`	`2410326`
`1`	`0`	`728`	`115464`
`1`	`0`	`2186`
`1`	`0`
`1`

A327751 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`0`	`2`	`0`	`6`	`0`	`20`	`0`	`70`
		`1`	`0`	`8`	`24`	`216`	`1200`	`8840`	`58800`
			`1`	`0`	`26`	`264`	`5646`	`101520`	`2103740`
				`1`	`0`	`80`	`2160`	`121200`	`6136800`
					`1`	`0`	`242`	`16080`	`2410326`
						`1`	`0`	`728`	`115464`
							`1`	`0`	`2186`
								`1`	`0`
									`1`

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Last modified July 16 10:13 EDT 2024. Contains 374345 sequences. (Running on oeis4.)