A291872 - OEIS

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A291872 as a triangular array

1

3 3

4 9 4

4 24 24 4

4 56 129 56 4

4 136 613 613 136 4

4 328 2997 5617 2997 328 4

4 792 14713 52955 52955 14713 792 4

4 1912 72169 502521 964755 502521 72169 1912 4

4 4616 353853 4763717 17625829 17625829 4763717 353853 4616 4

A291872 as a square array

`1`	`3`	`4`	`4`	`4`	`4`	`4`	`4`	`4`	`4`
`3`	`9`	`24`	`56`	`136`	`328`	`792`	`1912`	`4616`
`4`	`24`	`129`	`613`	`2997`	`14713`	`72169`	`353853`
`4`	`56`	`613`	`5617`	`52955`	`502521`	`4763717`
`4`	`136`	`2997`	`52955`	`964755`	`17625829`
`4`	`328`	`14713`	`502521`	`17625829`
`4`	`792`	`72169`	`4763717`
`4`	`1912`	`353853`
`4`	`4616`
`4`

A291872 as an upper right triangle

`1`	`3`	`4`	`4`	`4`	`4`	`4`	`4`	`4`	`4`
	`3`	`9`	`24`	`56`	`136`	`328`	`792`	`1912`	`4616`
		`4`	`24`	`129`	`613`	`2997`	`14713`	`72169`	`353853`
			`4`	`56`	`613`	`5617`	`52955`	`502521`	`4763717`
				`4`	`136`	`2997`	`52955`	`964755`	`17625829`
					`4`	`328`	`14713`	`502521`	`17625829`
						`4`	`792`	`72169`	`4763717`
							`4`	`1912`	`353853`
								`4`	`4616`
									`4`

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Last modified August 4 10:16 EDT 2024. Contains 374914 sequences. (Running on oeis4.)