A203564 - OEIS

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A203564 as a triangular array

3

3 3

3 9 3

3 9 9 3

3 33 87 33 3

3 53 177 177 53 3

3 183 993 5673 993 183 3

3 395 10833 32613 32613 10833 395 3

3 1249 35619 513903 2577513 513903 35619 1249 3

3 3141 219873 7343451 39612503 39612503 7343451

A203564 as a square array

`3`	`3`	`3`	`3`	`3`	`3`	`3`	`3`	`3`	`3`
`3`	`9`	`9`	`33`	`53`	`183`	`395`	`1249`	`3141`
`3`	`9`	`87`	`177`	`993`	`10833`	`35619`	`219873`
`3`	`33`	`177`	`5673`	`32613`	`513903`	`7343451`
`3`	`53`	`993`	`32613`	`2577513`	`39612503`
`3`	`183`	`10833`	`513903`	`39612503`
`3`	`395`	`35619`	`7343451`
`3`	`1249`
`3`

A203564 as an upper right triangle

`3`	`3`	`3`	`3`	`3`	`3`	`3`	`3`	`3`	`3`
	`3`	`9`	`9`	`33`	`53`	`183`	`395`	`1249`	`3141`
		`3`	`9`	`87`	`177`	`993`	`10833`	`35619`	`219873`
			`3`	`33`	`177`	`5673`	`32613`	`513903`	`7343451`
				`3`	`53`	`993`	`32613`	`2577513`	`39612503`
					`3`	`183`	`10833`	`513903`	`39612503`
						`3`	`395`	`35619`	`7343451`
							`3`	`1249`
								`3`

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Last modified June 11 14:17 EDT 2024. Contains 373311 sequences. (Running on oeis4.)