A267901 - OEIS

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A267901 as a triangular array

0

1 0

1 2 0

1 3 6 0

1 11 20 30 0

1 29 268 138 192 0

1 93 2324 17658 1488 1560 0

1 268 28318 414138 1696920 20400 15120 0

1 842 315196 28493946 134764368 273460560 317520 171360 0

1 2547 3786836 1246334388

A267901 as a square array

`0`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`2`	`3`	`11`	`29`	`93`	`268`	`842`	`2547`
`0`	`6`	`20`	`268`	`2324`	`28318`	`315196`	`3786836`
`0`	`30`	`138`	`17658`	`414138`	`28493946`	`1246334388`
`0`	`192`	`1488`	`1696920`	`134764368`
`0`	`1560`	`20400`	`273460560`
`0`	`15120`	`317520`
`0`	`171360`
`0`

A267901 as an upper right triangle

`0`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`2`	`3`	`11`	`29`	`93`	`268`	`842`	`2547`
		`0`	`6`	`20`	`268`	`2324`	`28318`	`315196`	`3786836`
			`0`	`30`	`138`	`17658`	`414138`	`28493946`	`1246334388`
				`0`	`192`	`1488`	`1696920`	`134764368`
					`0`	`1560`	`20400`	`273460560`
						`0`	`15120`	`317520`
							`0`	`171360`
								`0`

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)