A124931 - OEIS

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A124931 as a triangular array

1

2 3

3 9 5

4 18 20 7

5 30 50 35 9

6 45 100 105 54 11

7 63 175 245 189 77 13

8 84 280 490 504 308 104 15

9 108 420 882 1134 924 468 135 17

10 135 600 1470 2268 2310 1560 675 170 19

11 165 825 2310 4158 5082 4290 2475 935 209 21

A124931 as a square array

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`
`3`	`9`	`18`	`30`	`45`	`63`	`84`	`108`	`135`	`165`
`5`	`20`	`50`	`100`	`175`	`280`	`420`	`600`	`825`
`7`	`35`	`105`	`245`	`490`	`882`	`1470`	`2310`
`9`	`54`	`189`	`504`	`1134`	`2268`	`4158`
`11`	`77`	`308`	`924`	`2310`	`5082`
`13`	`104`	`468`	`1560`	`4290`
`15`	`135`	`675`	`2475`
`17`	`170`	`935`
`19`	`209`
`21`

A124931 as an upper right triangle

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`
	`3`	`9`	`18`	`30`	`45`	`63`	`84`	`108`	`135`	`165`
		`5`	`20`	`50`	`100`	`175`	`280`	`420`	`600`	`825`
			`7`	`35`	`105`	`245`	`490`	`882`	`1470`	`2310`
				`9`	`54`	`189`	`504`	`1134`	`2268`	`4158`
					`11`	`77`	`308`	`924`	`2310`	`5082`
						`13`	`104`	`468`	`1560`	`4290`
							`15`	`135`	`675`	`2475`
								`17`	`170`	`935`
									`19`	`209`
										`21`

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Last modified April 25 09:25 EDT 2024. Contains 371967 sequences. (Running on oeis4.)