A195074 - OEIS

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A195074 as a triangular array

1

3 2

6 4 5

10 7 9 8

15 11 14 12 13

21 16 20 17 19 18

28 22 27 23 26 25 24

36 29 35 30 34 33 31 32

45 37 44 38 43 42 39 41 40

55 46 54 47 53 52 48 51 49 50

66 56 65 57 64 63 58 62 59 61 60

78 67 77

A195074 as a square array

`1`	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`	`78`
`2`	`4`	`7`	`11`	`16`	`22`	`29`	`37`	`46`	`56`	`67`
`5`	`9`	`14`	`20`	`27`	`35`	`44`	`54`	`65`	`77`
`8`	`12`	`17`	`23`	`30`	`38`	`47`	`57`
`13`	`19`	`26`	`34`	`43`	`53`	`64`
`18`	`25`	`33`	`42`	`52`	`63`
`24`	`31`	`39`	`48`	`58`
`32`	`41`	`51`	`62`
`40`	`49`	`59`
`50`	`61`
`60`

A195074 as an upper right triangle

`1`	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`	`78`
	`2`	`4`	`7`	`11`	`16`	`22`	`29`	`37`	`46`	`56`	`67`
		`5`	`9`	`14`	`20`	`27`	`35`	`44`	`54`	`65`	`77`
			`8`	`12`	`17`	`23`	`30`	`38`	`47`	`57`
				`13`	`19`	`26`	`34`	`43`	`53`	`64`
					`18`	`25`	`33`	`42`	`52`	`63`
						`24`	`31`	`39`	`48`	`58`
							`32`	`41`	`51`	`62`
								`40`	`49`	`59`
									`50`	`61`
										`60`

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Last modified August 30 15:55 EDT 2024. Contains 375545 sequences. (Running on oeis4.)