A230861 - OEIS

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A230861 as a triangular array

-1

-1 1

-1 2 -1

-1 3 -3 1

-1 4 -6 4 -1

-1 5 -10 10 -5 1

-1 7 -15 20 -15 6 -1

-1 9 -23 35 -35 21 -7 1

-1 11 -34 59 -70 56 -28 8 -1

-1 13 -48 96 -130 126 -84 36 -9 1

-1 15 -65 150 -230 257 -210 120 -45 10 -1

A230861 as a square array

`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`
`1`	`2`	`3`	`4`	`5`	`7`	`9`	`11`	`13`	`15`
`-1`	`-3`	`-6`	`-10`	`-15`	`-23`	`-34`	`-48`	`-65`
`1`	`4`	`10`	`20`	`35`	`59`	`96`	`150`
`-1`	`-5`	`-15`	`-35`	`-70`	`-130`	`-230`
`1`	`6`	`21`	`56`	`126`	`257`
`-1`	`-7`	`-28`	`-84`	`-210`
`1`	`8`	`36`	`120`
`-1`	`-9`	`-45`
`1`	`10`
`-1`

A230861 as an upper right triangle

`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`	`-1`
	`1`	`2`	`3`	`4`	`5`	`7`	`9`	`11`	`13`	`15`
		`-1`	`-3`	`-6`	`-10`	`-15`	`-23`	`-34`	`-48`	`-65`
			`1`	`4`	`10`	`20`	`35`	`59`	`96`	`150`
				`-1`	`-5`	`-15`	`-35`	`-70`	`-130`	`-230`
					`1`	`6`	`21`	`56`	`126`	`257`
						`-1`	`-7`	`-28`	`-84`	`-210`
							`1`	`8`	`36`	`120`
								`-1`	`-9`	`-45`
									`1`	`10`
										`-1`

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Last modified August 12 18:19 EDT 2024. Contains 375113 sequences. (Running on oeis4.)