A118978 - OEIS

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A118978 as a triangular array

2

3 2

4 6 2

5 10 9 2

6 15 20 12 2

7 21 35 34 15 2

8 28 56 70 52 18 2

9 36 84 126 125 74 21 2

10 45 120 210 252 205 100 24 2

11 55 165 330 462 461 315 130 27 2

12 66 220 495 792 924 786 460 164 30 2

13 78 286 715 1287

A118978 as a square array

`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`	`12`	`13`
`2`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`	`78`
`2`	`9`	`20`	`35`	`56`	`84`	`120`	`165`	`220`	`286`
`2`	`12`	`34`	`70`	`126`	`210`	`330`	`495`	`715`
`2`	`15`	`52`	`125`	`252`	`462`	`792`	`1287`
`2`	`18`	`74`	`205`	`461`	`924`
`2`	`21`	`100`	`315`	`786`
`2`	`24`	`130`	`460`
`2`	`27`	`164`
`2`	`30`
`2`

A118978 as an upper right triangle

`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`	`12`	`13`
	`2`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`	`78`
		`2`	`9`	`20`	`35`	`56`	`84`	`120`	`165`	`220`	`286`
			`2`	`12`	`34`	`70`	`126`	`210`	`330`	`495`	`715`
				`2`	`15`	`52`	`125`	`252`	`462`	`792`	`1287`
					`2`	`18`	`74`	`205`	`461`	`924`
						`2`	`21`	`100`	`315`	`786`
							`2`	`24`	`130`	`460`
								`2`	`27`	`164`
									`2`	`30`
										`2`

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Last modified August 3 12:10 EDT 2024. Contains 374893 sequences. (Running on oeis4.)