A111818 - OEIS

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A111818 as a triangular array

0

1 0

-2 4 0

2 -8 16 0

840 8 -32 64 0

-76056 3360 32 -128 256 0

-158761104 -304224 13440 128 -512 1024 0

390564896784 -635044416 -1216896 53760 512 -2048 4096 0

14713376473366656 1562259587136 -2540177664 -4867584 215040 2048 -8192 16384 0

A111818 as a square array

`0`	`1`	`-2`	`2`	`840`	`-76056`	`-158761104`	`390564896784`	`14713376473366656`
`0`	`4`	`-8`	`8`	`3360`	`-304224`	`-635044416`	`1562259587136`
`0`	`16`	`-32`	`32`	`13440`	`-1216896`	`-2540177664`
`0`	`64`	`-128`	`128`	`53760`	`-4867584`
`0`	`256`	`-512`	`512`	`215040`
`0`	`1024`	`-2048`	`2048`
`0`	`4096`	`-8192`
`0`	`16384`
`0`

A111818 as an upper right triangle

`0`	`1`	`-2`	`2`	`840`	`-76056`	`-158761104`	`390564896784`	`14713376473366656`
	`0`	`4`	`-8`	`8`	`3360`	`-304224`	`-635044416`	`1562259587136`
		`0`	`16`	`-32`	`32`	`13440`	`-1216896`	`-2540177664`
			`0`	`64`	`-128`	`128`	`53760`	`-4867584`
				`0`	`256`	`-512`	`512`	`215040`
					`0`	`1024`	`-2048`	`2048`
						`0`	`4096`	`-8192`
							`0`	`16384`
								`0`

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)