A284128 - OEIS

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A284128 as a triangular array

9

15 15

27 25 27

51 45 45 51

99 85 81 85 99

195 165 153 153 165 195

387 325 297 289 297 325 387

771 645 585 561 561 585 645 771

1539 1285 1161 1105 1089 1105 1161 1285 1539

3075 2565 2313 2193 2145 2145 2193 2313 2565 3075

A284128 as a square array

`9`	`15`	`27`	`51`	`99`	`195`	`387`	`771`	`1539`	`3075`
`15`	`25`	`45`	`85`	`165`	`325`	`645`	`1285`	`2565`
`27`	`45`	`81`	`153`	`297`	`585`	`1161`	`2313`
`51`	`85`	`153`	`289`	`561`	`1105`	`2193`
`99`	`165`	`297`	`561`	`1089`	`2145`
`195`	`325`	`585`	`1105`	`2145`
`387`	`645`	`1161`	`2193`
`771`	`1285`	`2313`
`1539`	`2565`
`3075`

A284128 as an upper right triangle

`9`	`15`	`27`	`51`	`99`	`195`	`387`	`771`	`1539`	`3075`
	`15`	`25`	`45`	`85`	`165`	`325`	`645`	`1285`	`2565`
		`27`	`45`	`81`	`153`	`297`	`585`	`1161`	`2313`
			`51`	`85`	`153`	`289`	`561`	`1105`	`2193`
				`99`	`165`	`297`	`561`	`1089`	`2145`
					`195`	`325`	`585`	`1105`	`2145`
						`387`	`645`	`1161`	`2193`
							`771`	`1285`	`2313`
								`1539`	`2565`
									`3075`

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Last modified April 19 03:11 EDT 2024. Contains 371782 sequences. (Running on oeis4.)