A180957 - OEIS

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A180957 as a triangular array

1

1 1

1 1 1

1 0 0 1

1 -2 -5 -2 1

1 -5 -15 -15 -5 1

1 -9 -30 -41 -30 -9 1

1 -14 -49 -77 -77 -49 -14 1

1 -20 -70 -112 -125 -112 -70 -20 1

1 -27 -90 -126 -117 -117 -126 -90 -27 1

1 -35 -105 -90 45 131 45 -90 -105 -35 1

A180957 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`1`	`0`	`-2`	`-5`	`-9`	`-14`	`-20`	`-27`	`-35`
`1`	`0`	`-5`	`-15`	`-30`	`-49`	`-70`	`-90`	`-105`
`1`	`-2`	`-15`	`-41`	`-77`	`-112`	`-126`	`-90`
`1`	`-5`	`-30`	`-77`	`-125`	`-117`	`45`
`1`	`-9`	`-49`	`-112`	`-117`	`131`
`1`	`-14`	`-70`	`-126`	`45`
`1`	`-20`	`-90`	`-90`
`1`	`-27`	`-105`
`1`	`-35`
`1`

A180957 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`1`	`0`	`-2`	`-5`	`-9`	`-14`	`-20`	`-27`	`-35`
		`1`	`0`	`-5`	`-15`	`-30`	`-49`	`-70`	`-90`	`-105`
			`1`	`-2`	`-15`	`-41`	`-77`	`-112`	`-126`	`-90`
				`1`	`-5`	`-30`	`-77`	`-125`	`-117`	`45`
					`1`	`-9`	`-49`	`-112`	`-117`	`131`
						`1`	`-14`	`-70`	`-126`	`45`
							`1`	`-20`	`-90`	`-90`
								`1`	`-27`	`-105`
									`1`	`-35`
										`1`

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Last modified September 9 07:24 EDT 2024. Contains 375762 sequences. (Running on oeis4.)