A155993 - OEIS

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A155993 as a triangular array

2

1 1

3 0 3

-2 9 9 -2

-5 0 40 0 -5

-14 5 40 40 5 -14

-27 0 90 0 90 0 -27

-62 21 154 14 14 154 21 -62

-125 0 400 0 -40 0 400 0 -125

-254 9 648 288 -180 -180 288 648 9 -254

-507 0 1410 0 120 0 120 0 1410 0 -507

A155993 as a square array

`2`	`1`	`3`	`-2`	`-5`	`-14`	`-27`	`-62`	`-125`	`-254`	`-507`
`1`	`0`	`9`	`0`	`5`	`0`	`21`	`0`	`9`	`0`
`3`	`9`	`40`	`40`	`90`	`154`	`400`	`648`	`1410`
`-2`	`0`	`40`	`0`	`14`	`0`	`288`	`0`
`-5`	`5`	`90`	`14`	`-40`	`-180`	`120`
`-14`	`0`	`154`	`0`	`-180`	`0`
`-27`	`21`	`400`	`288`	`120`
`-62`	`0`	`648`	`0`
`-125`	`9`	`1410`
`-254`	`0`
`-507`

A155993 as an upper right triangle

`2`	`1`	`3`	`-2`	`-5`	`-14`	`-27`	`-62`	`-125`	`-254`	`-507`
	`1`	`0`	`9`	`0`	`5`	`0`	`21`	`0`	`9`	`0`
		`3`	`9`	`40`	`40`	`90`	`154`	`400`	`648`	`1410`
			`-2`	`0`	`40`	`0`	`14`	`0`	`288`	`0`
				`-5`	`5`	`90`	`14`	`-40`	`-180`	`120`
					`-14`	`0`	`154`	`0`	`-180`	`0`
						`-27`	`21`	`400`	`288`	`120`
							`-62`	`0`	`648`	`0`
								`-125`	`9`	`1410`
									`-254`	`0`
										`-507`

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Last modified April 24 06:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)