A286331 - OEIS

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A286331 as a triangular array

1

1 1

1 9 6

1 49 294 168

1 225 7350 37800 20160

1 961 144150 4036200 19373760 9999360

1 3969 2542806 326932200 8543828160 39687459840 20158709760

1 16129 42677334 23435953128 2812314375360 71124337751040 325139829719040 163849992929280

A286331 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`9`	`49`	`225`	`961`	`3969`	`16129`
`6`	`294`	`7350`	`144150`	`2542806`	`42677334`
`168`	`37800`	`4036200`	`326932200`	`23435953128`
`20160`	`19373760`	`8543828160`	`2812314375360`
`9999360`	`39687459840`	`71124337751040`
`20158709760`	`325139829719040`
`163849992929280`

A286331 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`9`	`49`	`225`	`961`	`3969`	`16129`
		`6`	`294`	`7350`	`144150`	`2542806`	`42677334`
			`168`	`37800`	`4036200`	`326932200`	`23435953128`
				`20160`	`19373760`	`8543828160`	`2812314375360`
					`9999360`	`39687459840`	`71124337751040`
						`20158709760`	`325139829719040`
							`163849992929280`

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Last modified June 1 12:42 EDT 2024. Contains 373023 sequences. (Running on oeis4.)