A222894 - OEIS

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A222894 as a triangular array

1

2 2

3 7 3

7 34 34 7

20 389 991 389 20

67 7145 84521 84521 7145 67

255 179465 11047723 46407465 11047723 179465 255

1080 5426201 1639681049 30122054696 30122054696 1639681049 5426201 1080

5016 180390761

A222894 as a square array

`1`	`2`	`3`	`7`	`20`	`67`	`255`	`1080`	`5016`
`2`	`7`	`34`	`389`	`7145`	`179465`	`5426201`	`180390761`
`3`	`34`	`991`	`84521`	`11047723`	`1639681049`
`7`	`389`	`84521`	`46407465`	`30122054696`
`20`	`7145`	`11047723`	`30122054696`
`67`	`179465`	`1639681049`
`255`	`5426201`
`1080`

A222894 as an upper right triangle

`1`	`2`	`3`	`7`	`20`	`67`	`255`	`1080`	`5016`
	`2`	`7`	`34`	`389`	`7145`	`179465`	`5426201`	`180390761`
		`3`	`34`	`991`	`84521`	`11047723`	`1639681049`
			`7`	`389`	`84521`	`46407465`	`30122054696`
				`20`	`7145`	`11047723`	`30122054696`
					`67`	`179465`	`1639681049`
						`255`	`5426201`
							`1080`

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Last modified November 30 13:32 EST 2023. Contains 367461 sequences. (Running on oeis4.)