A287206 - OEIS

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A287206 as a triangular array

1

0 1

1 0 3

1 28 0 28

281 120 1680 0 840

9921 139376 29760 277760 0 83328

16078337 20000736 140491008 19998720 139991040 0 27998208

13596908545 130684723136 81282991104 380636971008 40637399040 227569434624 0 32509919232

191426147495937 443803094908800 2132774681579520 884358943211520 3105997683425280 265280940933120 1237977724354560 0 132640470466560

A287206 as a square array

`1`	`0`	`1`	`1`	`281`	`9921`	`16078337`	`13596908545`	`191426147495937`
`1`	`0`	`28`	`120`	`139376`	`20000736`	`130684723136`	`443803094908800`
`3`	`0`	`1680`	`29760`	`140491008`	`81282991104`	`2132774681579520`
`28`	`0`	`277760`	`19998720`	`380636971008`	`884358943211520`
`840`	`0`	`139991040`	`40637399040`	`3105997683425280`
`83328`	`0`	`227569434624`	`265280940933120`
`27998208`	`0`	`1237977724354560`
`32509919232`	`0`
`132640470466560`

A287206 as an upper right triangle

`1`	`0`	`1`	`1`	`281`	`9921`	`16078337`	`13596908545`	`191426147495937`
	`1`	`0`	`28`	`120`	`139376`	`20000736`	`130684723136`	`443803094908800`
		`3`	`0`	`1680`	`29760`	`140491008`	`81282991104`	`2132774681579520`
			`28`	`0`	`277760`	`19998720`	`380636971008`	`884358943211520`
				`840`	`0`	`139991040`	`40637399040`	`3105997683425280`
					`83328`	`0`	`227569434624`	`265280940933120`
						`27998208`	`0`	`1237977724354560`
							`32509919232`	`0`
								`132640470466560`

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Last modified September 4 06:48 EDT 2024. Contains 375679 sequences. (Running on oeis4.)