A309865 - OEIS

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A309865 as a triangular array

2

2 2

2 3 2

2 4 4 2

2 5 11 5 2

2 6 34 34 6 2

2 7 156 2136 156 7 2

2 8 1044 7013320 7013320 1044 8 2

2 9 12346 1788782616656 29281354514767168 1788782616656 12346 9 2

A309865 as a square array

`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
`2`	`4`	`11`	`34`	`156`	`1044`	`12346`
`2`	`5`	`34`	`2136`	`7013320`	`1788782616656`
`2`	`6`	`156`	`7013320`	`29281354514767168`
`2`	`7`	`1044`	`1788782616656`
`2`	`8`	`12346`
`2`	`9`
`2`

A309865 as an upper right triangle

`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
		`2`	`4`	`11`	`34`	`156`	`1044`	`12346`
			`2`	`5`	`34`	`2136`	`7013320`	`1788782616656`
				`2`	`6`	`156`	`7013320`	`29281354514767168`
					`2`	`7`	`1044`	`1788782616656`
						`2`	`8`	`12346`
							`2`	`9`
								`2`

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Last modified April 23 05:16 EDT 2024. Contains 371906 sequences. (Running on oeis4.)