A203717 - OEIS

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A203717 as a triangular array

1

1 1

1 3 1

1 8 4 1

1 20 15 5 1

1 50 53 21 6 1

1 126 182 84 28 7 1

1 322 616 326 120 36 8 1

1 834 2070 1242 495 165 45 9 1

1 2187 6930 4680 1997 715 220 55 10 1

1 5797 23166 17512 7942 3003 1001 286 66 11 1

A203717 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`3`	`8`	`20`	`50`	`126`	`322`	`834`	`2187`	`5797`
`1`	`4`	`15`	`53`	`182`	`616`	`2070`	`6930`	`23166`
`1`	`5`	`21`	`84`	`326`	`1242`	`4680`	`17512`
`1`	`6`	`28`	`120`	`495`	`1997`	`7942`
`1`	`7`	`36`	`165`	`715`	`3003`
`1`	`8`	`45`	`220`	`1001`
`1`	`9`	`55`	`286`
`1`	`10`	`66`
`1`	`11`
`1`

A203717 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`3`	`8`	`20`	`50`	`126`	`322`	`834`	`2187`	`5797`
		`1`	`4`	`15`	`53`	`182`	`616`	`2070`	`6930`	`23166`
			`1`	`5`	`21`	`84`	`326`	`1242`	`4680`	`17512`
				`1`	`6`	`28`	`120`	`495`	`1997`	`7942`
					`1`	`7`	`36`	`165`	`715`	`3003`
						`1`	`8`	`45`	`220`	`1001`
							`1`	`9`	`55`	`286`
								`1`	`10`	`66`
									`1`	`11`
										`1`

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Last modified May 30 12:02 EDT 2024. Contains 372968 sequences. (Running on oeis4.)