A175757 - OEIS

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A175757 as a triangular array

1

2 1

6 3 1

20 12 4 1

75 50 20 5 1

312 225 100 30 6 1

1421 1092 525 175 42 7 1

7016 5684 2912 1050 280 56 8 1

37260 31572 17052 6552 1890 420 72 9 1

211470 186300 105240 42630 13104 3150 600 90 10 1

A175757 as a square array

`1`	`2`	`6`	`20`	`75`	`312`	`1421`	`7016`	`37260`	`211470`
`1`	`3`	`12`	`50`	`225`	`1092`	`5684`	`31572`	`186300`
`1`	`4`	`20`	`100`	`525`	`2912`	`17052`	`105240`
`1`	`5`	`30`	`175`	`1050`	`6552`	`42630`
`1`	`6`	`42`	`280`	`1890`	`13104`
`1`	`7`	`56`	`420`	`3150`
`1`	`8`	`72`	`600`
`1`	`9`	`90`
`1`	`10`
`1`

A175757 as an upper right triangle

`1`	`2`	`6`	`20`	`75`	`312`	`1421`	`7016`	`37260`	`211470`
	`1`	`3`	`12`	`50`	`225`	`1092`	`5684`	`31572`	`186300`
		`1`	`4`	`20`	`100`	`525`	`2912`	`17052`	`105240`
			`1`	`5`	`30`	`175`	`1050`	`6552`	`42630`
				`1`	`6`	`42`	`280`	`1890`	`13104`
					`1`	`7`	`56`	`420`	`3150`
						`1`	`8`	`72`	`600`
							`1`	`9`	`90`
								`1`	`10`
									`1`

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Last modified June 10 12:29 EDT 2024. Contains 373264 sequences. (Running on oeis4.)