A287274 - OEIS

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A287274 as a triangular array

1

3 3

7 11 7

15 51 51 15

31 227 421 227 31

63 963 3615 3615 963 63

127 3971 30517 59747 30517 3971 127

255 16131 252231 989295 989295 252231 16131 255

511 65027 2054941 16219187 32260381 16219187 2054941 65027 511

A287274 as a square array

`1`	`3`	`7`	`15`	`31`	`63`	`127`	`255`	`511`
`3`	`11`	`51`	`227`	`963`	`3971`	`16131`	`65027`
`7`	`51`	`421`	`3615`	`30517`	`252231`	`2054941`
`15`	`227`	`3615`	`59747`	`989295`	`16219187`
`31`	`963`	`30517`	`989295`	`32260381`
`63`	`3971`	`252231`	`16219187`
`127`	`16131`	`2054941`
`255`	`65027`
`511`

A287274 as an upper right triangle

`1`	`3`	`7`	`15`	`31`	`63`	`127`	`255`	`511`
	`3`	`11`	`51`	`227`	`963`	`3971`	`16131`	`65027`
		`7`	`51`	`421`	`3615`	`30517`	`252231`	`2054941`
			`15`	`227`	`3615`	`59747`	`989295`	`16219187`
				`31`	`963`	`30517`	`989295`	`32260381`
					`63`	`3971`	`252231`	`16219187`
						`127`	`16131`	`2054941`
							`255`	`65027`
								`511`

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Last modified April 23 10:21 EDT 2024. Contains 371905 sequences. (Running on oeis4.)