A091867 - OEIS

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A091867 as a triangular array

1

0 1

1 0 1

1 3 0 1

3 4 6 0 1

6 15 10 10 0 1

15 36 45 20 15 0 1

36 105 126 105 35 21 0 1

91 288 420 336 210 56 28 0 1

232 819 1296 1260 756 378 84 36 0 1

603 2320 4095 4320 3150 1512 630 120 45 0 1

1585 6633 12760 15015 11880 6930 2772 990 165 55 0 1

A091867 as a square array

`1`	`0`	`1`	`1`	`3`	`6`	`15`	`36`	`91`	`232`	`603`	`1585`
`1`	`0`	`3`	`4`	`15`	`36`	`105`	`288`	`819`	`2320`	`6633`
`1`	`0`	`6`	`10`	`45`	`126`	`420`	`1296`	`4095`	`12760`
`1`	`0`	`10`	`20`	`105`	`336`	`1260`	`4320`	`15015`
`1`	`0`	`15`	`35`	`210`	`756`	`3150`	`11880`
`1`	`0`	`21`	`56`	`378`	`1512`	`6930`
`1`	`0`	`28`	`84`	`630`	`2772`
`1`	`0`	`36`	`120`	`990`
`1`	`0`	`45`	`165`
`1`	`0`	`55`
`1`	`0`
`1`

A091867 as an upper right triangle

`1`	`0`	`1`	`1`	`3`	`6`	`15`	`36`	`91`	`232`	`603`	`1585`
	`1`	`0`	`3`	`4`	`15`	`36`	`105`	`288`	`819`	`2320`	`6633`
		`1`	`0`	`6`	`10`	`45`	`126`	`420`	`1296`	`4095`	`12760`
			`1`	`0`	`10`	`20`	`105`	`336`	`1260`	`4320`	`15015`
				`1`	`0`	`15`	`35`	`210`	`756`	`3150`	`11880`
					`1`	`0`	`21`	`56`	`378`	`1512`	`6930`
						`1`	`0`	`28`	`84`	`630`	`2772`
							`1`	`0`	`36`	`120`	`990`
								`1`	`0`	`45`	`165`
									`1`	`0`	`55`
										`1`	`0`
											`1`

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)