A178400 - OEIS

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A178400 as a triangular array

4

5 5

6 7 7

8 8 9 9

10 10 10 12 12

13 13 14 14 14 15

15 16 16 16 16 18 18

18 18 19 19 20 20 20 20

21 21 22 22 22 22 22 24 24

24 24 24 24 25 25 26 26 26 26

26 28 28 28 28 30 30 30 30 30 30

31

A178400 as a square array

`4`	`5`	`6`	`8`	`10`	`13`	`15`	`18`	`21`	`24`	`26`	`31`
`5`	`7`	`8`	`10`	`13`	`16`	`18`	`21`	`24`	`28`
`7`	`9`	`10`	`14`	`16`	`19`	`22`	`24`	`28`
`9`	`12`	`14`	`16`	`19`	`22`	`24`	`28`
`12`	`14`	`16`	`20`	`22`	`25`	`28`
`15`	`18`	`20`	`22`	`25`	`30`
`18`	`20`	`22`	`26`	`30`
`20`	`24`	`26`	`30`
`24`	`26`	`30`
`26`	`30`
`30`

A178400 as an upper right triangle

`4`	`5`	`6`	`8`	`10`	`13`	`15`	`18`	`21`	`24`	`26`	`31`
	`5`	`7`	`8`	`10`	`13`	`16`	`18`	`21`	`24`	`28`
		`7`	`9`	`10`	`14`	`16`	`19`	`22`	`24`	`28`
			`9`	`12`	`14`	`16`	`19`	`22`	`24`	`28`
				`12`	`14`	`16`	`20`	`22`	`25`	`28`
					`15`	`18`	`20`	`22`	`25`	`30`
						`18`	`20`	`22`	`26`	`30`
							`20`	`24`	`26`	`30`
								`24`	`26`	`30`
									`26`	`30`
										`30`

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Last modified April 23 14:49 EDT 2024. Contains 371914 sequences. (Running on oeis4.)