A144220 - OEIS

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A144220 as a triangular array

1

2 -1

-3 1 1

-4 0 4 -1

5 2 -10 3 1

6 5 -20 5 6 -1

-7 -9 35 5 -21 5 1

-8 -14 56 0 -56 14 8 -1

9 20 -84 -14 126 -28 -36 7 1

10 27 -120 -42 252 -42 -120 27 10 -1

-11 -35 165 90 -462 42 330 -75 -55 9 1

A144220 as a square array

`1`	`2`	`-3`	`-4`	`5`	`6`	`-7`	`-8`	`9`	`10`	`-11`
`-1`	`1`	`0`	`2`	`5`	`-9`	`-14`	`20`	`27`	`-35`
`1`	`4`	`-10`	`-20`	`35`	`56`	`-84`	`-120`	`165`
`-1`	`3`	`5`	`5`	`0`	`-14`	`-42`	`90`
`1`	`6`	`-21`	`-56`	`126`	`252`	`-462`
`-1`	`5`	`14`	`-28`	`-42`	`42`
`1`	`8`	`-36`	`-120`	`330`
`-1`	`7`	`27`	`-75`
`1`	`10`	`-55`
`-1`	`9`
`1`

A144220 as an upper right triangle

`1`	`2`	`-3`	`-4`	`5`	`6`	`-7`	`-8`	`9`	`10`	`-11`
	`-1`	`1`	`0`	`2`	`5`	`-9`	`-14`	`20`	`27`	`-35`
		`1`	`4`	`-10`	`-20`	`35`	`56`	`-84`	`-120`	`165`
			`-1`	`3`	`5`	`5`	`0`	`-14`	`-42`	`90`
				`1`	`6`	`-21`	`-56`	`126`	`252`	`-462`
					`-1`	`5`	`14`	`-28`	`-42`	`42`
						`1`	`8`	`-36`	`-120`	`330`
							`-1`	`7`	`27`	`-75`
								`1`	`10`	`-55`
									`-1`	`9`
										`1`

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)