A209465 - OEIS

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A209465 as a triangular array

1

2 2

5 6 5

15 57 57 15

52 700 2027 700 52

203 10676 107472 107472 10676 203

877 192994 7487423 26142922 7487423 192994 877

4139 3966581 613535578 8012278798 8012278798 613535578 3966581 4139

21110 89157292

A209465 as a square array

`1`	`2`	`5`	`15`	`52`	`203`	`877`	`4139`	`21110`
`2`	`6`	`57`	`700`	`10676`	`192994`	`3966581`	`89157292`
`5`	`57`	`2027`	`107472`	`7487423`	`613535578`
`15`	`700`	`107472`	`26142922`	`8012278798`
`52`	`10676`	`7487423`	`8012278798`
`203`	`192994`	`613535578`
`877`	`3966581`
`4139`

A209465 as an upper right triangle

`1`	`2`	`5`	`15`	`52`	`203`	`877`	`4139`	`21110`
	`2`	`6`	`57`	`700`	`10676`	`192994`	`3966581`	`89157292`
		`5`	`57`	`2027`	`107472`	`7487423`	`613535578`
			`15`	`700`	`107472`	`26142922`	`8012278798`
				`52`	`10676`	`7487423`	`8012278798`
					`203`	`192994`	`613535578`
						`877`	`3966581`
							`4139`

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Last modified August 26 11:19 EDT 2024. Contains 375456 sequences. (Running on oeis4.)