A226717 - OEIS

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A226717 as a triangular array

3

9 9

25 71 25

67 427 427 67

181 2393 4671 2393 181

491 13691 49019 49019 13691 491

1331 80043 539703 977939 539703 80043 1331

3607 469273 6045209 20577215 20577215 6045209 469273 3607

9775 2739433 67402167

A226717 as a square array

`3`	`9`	`25`	`67`	`181`	`491`	`1331`	`3607`	`9775`
`9`	`71`	`427`	`2393`	`13691`	`80043`	`469273`	`2739433`
`25`	`427`	`4671`	`49019`	`539703`	`6045209`	`67402167`
`67`	`2393`	`49019`	`977939`	`20577215`
`181`	`13691`	`539703`	`20577215`
`491`	`80043`	`6045209`
`1331`	`469273`
`3607`

A226717 as an upper right triangle

`3`	`9`	`25`	`67`	`181`	`491`	`1331`	`3607`	`9775`
	`9`	`71`	`427`	`2393`	`13691`	`80043`	`469273`	`2739433`
		`25`	`427`	`4671`	`49019`	`539703`	`6045209`	`67402167`
			`67`	`2393`	`49019`	`977939`	`20577215`
				`181`	`13691`	`539703`	`20577215`
					`491`	`80043`	`6045209`
						`1331`	`469273`
							`3607`

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)