A055138 - OEIS

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A055138 as a triangular array

1

-1 1

0 -1 1

1 0 -2 1

-1 2 0 -2 1

-1 -3 6 0 -3 1

4 -3 -7 8 0 -3 1

-1 18 -18 -13 17 0 -4 1

-19 -4 56 -28 -22 20 0 -4 1

31 -127 60 136 -98 -34 36 0 -5 1

120 163 -511 80 288 -126 -50 40 0 -5 1

A055138 as a square array

`1`	`-1`	`0`	`1`	`-1`	`-1`	`4`	`-1`	`-19`	`31`	`120`
`1`	`-1`	`0`	`2`	`-3`	`-3`	`18`	`-4`	`-127`	`163`
`1`	`-2`	`0`	`6`	`-7`	`-18`	`56`	`60`	`-511`
`1`	`-2`	`0`	`8`	`-13`	`-28`	`136`	`80`
`1`	`-3`	`0`	`17`	`-22`	`-98`	`288`
`1`	`-3`	`0`	`20`	`-34`	`-126`
`1`	`-4`	`0`	`36`	`-50`
`1`	`-4`	`0`	`40`
`1`	`-5`	`0`
`1`	`-5`
`1`

A055138 as an upper right triangle

`1`	`-1`	`0`	`1`	`-1`	`-1`	`4`	`-1`	`-19`	`31`	`120`
	`1`	`-1`	`0`	`2`	`-3`	`-3`	`18`	`-4`	`-127`	`163`
		`1`	`-2`	`0`	`6`	`-7`	`-18`	`56`	`60`	`-511`
			`1`	`-2`	`0`	`8`	`-13`	`-28`	`136`	`80`
				`1`	`-3`	`0`	`17`	`-22`	`-98`	`288`
					`1`	`-3`	`0`	`20`	`-34`	`-126`
						`1`	`-4`	`0`	`36`	`-50`
							`1`	`-4`	`0`	`40`
								`1`	`-5`	`0`
									`1`	`-5`
										`1`

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)