A221388 - OEIS

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A221388 as a triangular array

0

0 0

0 0 0

0 1 0 0

0 7 4 0 0

0 38 94 13 0 0

0 190 1450 1198 40 0 0

0 918 20689 52320 15181 121 0 0

0 4367 284702 2204556 1829388 191832 364 0 0

0 20623 3856027 86673898 229338911 63358088 2420113 1093 0 0

0

A221388 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`0`	`1`	`7`	`38`	`190`	`918`	`4367`	`20623`
`0`	`0`	`4`	`94`	`1450`	`20689`	`284702`	`3856027`
`0`	`0`	`13`	`1198`	`52320`	`2204556`	`86673898`
`0`	`0`	`40`	`15181`	`1829388`	`229338911`
`0`	`0`	`121`	`191832`	`63358088`
`0`	`0`	`364`	`2420113`
`0`	`0`	`1093`
`0`	`0`
`0`

A221388 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`0`	`0`	`1`	`7`	`38`	`190`	`918`	`4367`	`20623`
		`0`	`0`	`4`	`94`	`1450`	`20689`	`284702`	`3856027`
			`0`	`0`	`13`	`1198`	`52320`	`2204556`	`86673898`
				`0`	`0`	`40`	`15181`	`1829388`	`229338911`
					`0`	`0`	`121`	`191832`	`63358088`
						`0`	`0`	`364`	`2420113`
							`0`	`0`	`1093`
								`0`	`0`
									`0`

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Last modified April 23 20:27 EDT 2024. Contains 371916 sequences. (Running on oeis4.)