A171830 - OEIS

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A171830 as a triangular array

1

2 2

3 4 3

16 24 24 16

45 144 162 144 45

192 480 1152 1152 480 192

1050 2400 4500 9600 4500 2400 1050

6912 15120 25920 43200 43200 25920 15120 6912

52920 112896 185220 282240 220500 282240 185220 112896 52920

A171830 as a square array

`1`	`2`	`3`	`16`	`45`	`192`	`1050`	`6912`	`52920`
`2`	`4`	`24`	`144`	`480`	`2400`	`15120`	`112896`
`3`	`24`	`162`	`1152`	`4500`	`25920`	`185220`
`16`	`144`	`1152`	`9600`	`43200`	`282240`
`45`	`480`	`4500`	`43200`	`220500`
`192`	`2400`	`25920`	`282240`
`1050`	`15120`	`185220`
`6912`	`112896`
`52920`

A171830 as an upper right triangle

`1`	`2`	`3`	`16`	`45`	`192`	`1050`	`6912`	`52920`
	`2`	`4`	`24`	`144`	`480`	`2400`	`15120`	`112896`
		`3`	`24`	`162`	`1152`	`4500`	`25920`	`185220`
			`16`	`144`	`1152`	`9600`	`43200`	`282240`
				`45`	`480`	`4500`	`43200`	`220500`
					`192`	`2400`	`25920`	`282240`
						`1050`	`15120`	`185220`
							`6912`	`112896`
								`52920`

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Last modified April 18 16:22 EDT 2024. Contains 371780 sequences. (Running on oeis4.)