A109954 - OEIS

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A109954 as a triangular array

1

-3 1

6 -5 1

-10 15 -7 1

15 -35 28 -9 1

-21 70 -84 45 -11 1

28 -126 210 -165 66 -13 1

-36 210 -462 495 -286 91 -15 1

45 -330 924 -1287 1001 -455 120 -17 1

-55 495 -1716 3003 -3003 1820 -680 153 -19 1

66 -715 3003 -6435 8008 -6188 3060 -969 190 -21 1

A109954 as a square array

`1`	`-3`	`6`	`-10`	`15`	`-21`	`28`	`-36`	`45`	`-55`	`66`
`1`	`-5`	`15`	`-35`	`70`	`-126`	`210`	`-330`	`495`	`-715`
`1`	`-7`	`28`	`-84`	`210`	`-462`	`924`	`-1716`	`3003`
`1`	`-9`	`45`	`-165`	`495`	`-1287`	`3003`	`-6435`
`1`	`-11`	`66`	`-286`	`1001`	`-3003`	`8008`
`1`	`-13`	`91`	`-455`	`1820`	`-6188`
`1`	`-15`	`120`	`-680`	`3060`
`1`	`-17`	`153`	`-969`
`1`	`-19`	`190`
`1`	`-21`
`1`

A109954 as an upper right triangle

`1`	`-3`	`6`	`-10`	`15`	`-21`	`28`	`-36`	`45`	`-55`	`66`
	`1`	`-5`	`15`	`-35`	`70`	`-126`	`210`	`-330`	`495`	`-715`
		`1`	`-7`	`28`	`-84`	`210`	`-462`	`924`	`-1716`	`3003`
			`1`	`-9`	`45`	`-165`	`495`	`-1287`	`3003`	`-6435`
				`1`	`-11`	`66`	`-286`	`1001`	`-3003`	`8008`
					`1`	`-13`	`91`	`-455`	`1820`	`-6188`
						`1`	`-15`	`120`	`-680`	`3060`
							`1`	`-17`	`153`	`-969`
								`1`	`-19`	`190`
									`1`	`-21`
										`1`

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Last modified April 23 12:08 EDT 2024. Contains 371912 sequences. (Running on oeis4.)