A221240 - OEIS

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A221240 as a triangular array

0

0 0

0 5 0

0 53 53 0

0 467 1979 467 0

0 3913 67710 67710 3913 0

0 32299 2217402 8959341 2217402 32299 0

0 265353 71862107 1130617545 1130617545 71862107 265353 0

0 2176758 2319920239 141336723259

A221240 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`5`	`53`	`467`	`3913`	`32299`	`265353`	`2176758`
`0`	`53`	`1979`	`67710`	`2217402`	`71862107`	`2319920239`
`0`	`467`	`67710`	`8959341`	`1130617545`	`141336723259`
`0`	`3913`	`2217402`	`1130617545`
`0`	`32299`	`71862107`
`0`	`265353`
`0`

A221240 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`0`	`5`	`53`	`467`	`3913`	`32299`	`265353`	`2176758`
		`0`	`53`	`1979`	`67710`	`2217402`	`71862107`	`2319920239`
			`0`	`467`	`67710`	`8959341`	`1130617545`	`141336723259`
				`0`	`3913`	`2217402`	`1130617545`
					`0`	`32299`	`71862107`
						`0`	`265353`
							`0`

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Last modified April 25 13:12 EDT 2024. Contains 371969 sequences. (Running on oeis4.)