A053495 - OEIS

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A053495 as a triangular array

1

1 -1

-1 2 -2

1 -4 6 -6

-1 6 -18 24 -24

1 -9 36 -96 120 -120

-1 12 -72 240 -600 720 -720

1 -16 120 -600 1800 -4320 5040 -5040

-1 20 -200 1200 -5400 15120 -35280 40320 -40320

1 -25 300 -2400 12600

A053495 as a square array

`1`	`1`	`-1`	`1`	`-1`	`1`	`-1`	`1`	`-1`	`1`
`-1`	`2`	`-4`	`6`	`-9`	`12`	`-16`	`20`	`-25`
`-2`	`6`	`-18`	`36`	`-72`	`120`	`-200`	`300`
`-6`	`24`	`-96`	`240`	`-600`	`1200`	`-2400`
`-24`	`120`	`-600`	`1800`	`-5400`	`12600`
`-120`	`720`	`-4320`	`15120`
`-720`	`5040`	`-35280`
`-5040`	`40320`
`-40320`

A053495 as an upper right triangle

`1`	`1`	`-1`	`1`	`-1`	`1`	`-1`	`1`	`-1`	`1`
	`-1`	`2`	`-4`	`6`	`-9`	`12`	`-16`	`20`	`-25`
		`-2`	`6`	`-18`	`36`	`-72`	`120`	`-200`	`300`
			`-6`	`24`	`-96`	`240`	`-600`	`1200`	`-2400`
				`-24`	`120`	`-600`	`1800`	`-5400`	`12600`
					`-120`	`720`	`-4320`	`15120`
						`-720`	`5040`	`-35280`
							`-5040`	`40320`
								`-40320`

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)