A217227 - OEIS

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A217227 as a triangular array

0

0 0

0 1 0

0 7 7 0

0 38 112 38 0

0 190 1648 1648 190 0

0 918 22914 67956 22914 918 0

0 4367 311988 2662621 2662621 311988 4367 0

0 20623 4202440 102825095 293153088 102825095 4202440 20623 0

0 97052 56306491

A217227 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`1`	`7`	`38`	`190`	`918`	`4367`	`20623`	`97052`
`0`	`7`	`112`	`1648`	`22914`	`311988`	`4202440`	`56306491`
`0`	`38`	`1648`	`67956`	`2662621`	`102825095`
`0`	`190`	`22914`	`2662621`	`293153088`
`0`	`918`	`311988`	`102825095`
`0`	`4367`	`4202440`
`0`	`20623`
`0`

A217227 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`0`	`1`	`7`	`38`	`190`	`918`	`4367`	`20623`	`97052`
		`0`	`7`	`112`	`1648`	`22914`	`311988`	`4202440`	`56306491`
			`0`	`38`	`1648`	`67956`	`2662621`	`102825095`
				`0`	`190`	`22914`	`2662621`	`293153088`
					`0`	`918`	`311988`	`102825095`
						`0`	`4367`	`4202440`
							`0`	`20623`
								`0`

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Last modified August 25 18:13 EDT 2024. Contains 375442 sequences. (Running on oeis4.)