A213615 - OEIS

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A213615 as a triangular array

1

2 -1

6 -6 1

2 -3 1 0

30 -60 30 0 -1

6 -15 10 0 -1 0

42 -126 105 0 -21 0 1

6 -21 21 0 -7 0 1 0

30 -120 140 0 -70 0 20 0 -1

10 -45 60 0 -42 0 20 0 -3 0

66 -330 495 0 -462 0 330 0 -99 0 5

6 -33

A213615 as a square array

`1`	`2`	`6`	`2`	`30`	`6`	`42`	`6`	`30`	`10`	`66`	`6`
`-1`	`-6`	`-3`	`-60`	`-15`	`-126`	`-21`	`-120`	`-45`	`-330`	`-33`
`1`	`1`	`30`	`10`	`105`	`21`	`140`	`60`	`495`
`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`-1`	`-1`	`-21`	`-7`	`-70`	`-42`	`-462`
`0`	`0`	`0`	`0`	`0`	`0`
`1`	`1`	`20`	`20`	`330`
`0`	`0`	`0`	`0`
`-1`	`-3`	`-99`
`0`	`0`
`5`

A213615 as an upper right triangle

`1`	`2`	`6`	`2`	`30`	`6`	`42`	`6`	`30`	`10`	`66`	`6`
	`-1`	`-6`	`-3`	`-60`	`-15`	`-126`	`-21`	`-120`	`-45`	`-330`	`-33`
		`1`	`1`	`30`	`10`	`105`	`21`	`140`	`60`	`495`
			`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
				`-1`	`-1`	`-21`	`-7`	`-70`	`-42`	`-462`
					`0`	`0`	`0`	`0`	`0`	`0`
						`1`	`1`	`20`	`20`	`330`
							`0`	`0`	`0`	`0`
								`-1`	`-3`	`-99`
									`0`	`0`
										`5`

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Last modified April 25 16:23 EDT 2024. Contains 371989 sequences. (Running on oeis4.)