A090181 - OEIS

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A090181 as a triangular array

1

0 1

0 1 1

0 1 3 1

0 1 6 6 1

0 1 10 20 10 1

0 1 15 50 50 15 1

0 1 21 105 175 105 21 1

0 1 28 196 490 490 196 28 1

0 1 36 336 1176 1764 1176 336 36 1

0 1 45 540 2520 5292 5292 2520 540 45 1

0 1 55 825 4950 13860

A090181 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`
`1`	`6`	`20`	`50`	`105`	`196`	`336`	`540`	`825`
`1`	`10`	`50`	`175`	`490`	`1176`	`2520`	`4950`
`1`	`15`	`105`	`490`	`1764`	`5292`	`13860`
`1`	`21`	`196`	`1176`	`5292`
`1`	`28`	`336`	`2520`
`1`	`36`	`540`
`1`	`45`
`1`

A090181 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
		`1`	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`
			`1`	`6`	`20`	`50`	`105`	`196`	`336`	`540`	`825`
				`1`	`10`	`50`	`175`	`490`	`1176`	`2520`	`4950`
					`1`	`15`	`105`	`490`	`1764`	`5292`	`13860`
						`1`	`21`	`196`	`1176`	`5292`
							`1`	`28`	`336`	`2520`
								`1`	`36`	`540`
									`1`	`45`
										`1`

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Last modified April 16 08:27 EDT 2024. Contains 371698 sequences. (Running on oeis4.)