A143228 - OEIS

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A143228 as a triangular array

1

1 1

2 2 4

3 3 6 9

5 5 10 15 25

7 7 1421 35 49 11

11 22 33 55 77 121 15

15 30 45 75 105 165 225 22

22 44 66 110 154 242 330 484 30

30 60 90 150 210 330 450 660 900 42

42 84 126 210 294 462630 924 1260 1764

A143228 as a square array

`1`	`1`	`2`	`3`	`5`	`7`	`11`	`15`	`22`	`30`	`42`
`1`	`2`	`3`	`5`	`7`	`22`	`30`	`44`	`60`	`84`
`4`	`6`	`10`	`1421`	`33`	`45`	`66`	`90`	`126`
`9`	`15`	`35`	`55`	`75`	`110`	`150`	`210`
`25`	`49`	`77`	`105`	`154`	`210`	`294`
`11`	`121`	`165`	`242`	`330`	`462630`
`15`	`225`	`330`	`450`	`924`
`22`	`484`	`660`	`1260`
`30`	`900`	`1764`
`42`

A143228 as an upper right triangle

`1`	`1`	`2`	`3`	`5`	`7`	`11`	`15`	`22`	`30`	`42`
	`1`	`2`	`3`	`5`	`7`	`22`	`30`	`44`	`60`	`84`
		`4`	`6`	`10`	`1421`	`33`	`45`	`66`	`90`	`126`
			`9`	`15`	`35`	`55`	`75`	`110`	`150`	`210`
				`25`	`49`	`77`	`105`	`154`	`210`	`294`
					`11`	`121`	`165`	`242`	`330`	`462630`
						`15`	`225`	`330`	`450`	`924`
							`22`	`484`	`660`	`1260`
								`30`	`900`	`1764`
									`42`

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Last modified June 4 22:04 EDT 2024. Contains 373102 sequences. (Running on oeis4.)