A038722 - OEIS

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A038722 as a triangular array

1

3 2

6 5 4

10 9 8 7

15 14 13 12 11

21 20 19 18 17 16

28 27 26 25 24 23 22

36 35 34 33 32 31 30 29

45 44 43 42 41 40 39 38 37

55 54 53 52 51 50 49 48 47 46

66 65 64 63 62 61 60 59 58 57 56

78 77 76

A038722 as a square array

`1`	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`	`78`
`2`	`5`	`9`	`14`	`20`	`27`	`35`	`44`	`54`	`65`	`77`
`4`	`8`	`13`	`19`	`26`	`34`	`43`	`53`	`64`	`76`
`7`	`12`	`18`	`25`	`33`	`42`	`52`	`63`
`11`	`17`	`24`	`32`	`41`	`51`	`62`
`16`	`23`	`31`	`40`	`50`	`61`
`22`	`30`	`39`	`49`	`60`
`29`	`38`	`48`	`59`
`37`	`47`	`58`
`46`	`57`
`56`

A038722 as an upper right triangle

`1`	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`	`78`
	`2`	`5`	`9`	`14`	`20`	`27`	`35`	`44`	`54`	`65`	`77`
		`4`	`8`	`13`	`19`	`26`	`34`	`43`	`53`	`64`	`76`
			`7`	`12`	`18`	`25`	`33`	`42`	`52`	`63`
				`11`	`17`	`24`	`32`	`41`	`51`	`62`
					`16`	`23`	`31`	`40`	`50`	`61`
						`22`	`30`	`39`	`49`	`60`
							`29`	`38`	`48`	`59`
								`37`	`47`	`58`
									`46`	`57`
										`56`

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Last modified May 2 23:14 EDT 2024. Contains 372203 sequences. (Running on oeis4.)