A068218 - OEIS

login

The OEIS is supported by the many generous donors to the OEIS Foundation.

A068218 as a triangular array

1

2 2

2 16 2

4 84 84 4

10 400 1056 400 10

28 1820 9184 9184 1820 28

84 8064 66276 126720 66276 8064 84

264 35112 426888 1329768 1329768 426888 35112 264

858 151008 2546544 11737440 19123776 11737440

A068218 as a square array

`1`	`2`	`2`	`4`	`10`	`28`	`84`	`264`	`858`
`2`	`16`	`84`	`400`	`1820`	`8064`	`35112`	`151008`
`2`	`84`	`1056`	`9184`	`66276`	`426888`	`2546544`
`4`	`400`	`9184`	`126720`	`1329768`	`11737440`
`10`	`1820`	`66276`	`1329768`	`19123776`
`28`	`8064`	`426888`	`11737440`
`84`	`35112`
`264`

A068218 as an upper right triangle

`1`	`2`	`2`	`4`	`10`	`28`	`84`	`264`	`858`
	`2`	`16`	`84`	`400`	`1820`	`8064`	`35112`	`151008`
		`2`	`84`	`1056`	`9184`	`66276`	`426888`	`2546544`
			`4`	`400`	`9184`	`126720`	`1329768`	`11737440`
				`10`	`1820`	`66276`	`1329768`	`19123776`
					`28`	`8064`	`426888`	`11737440`
						`84`	`35112`
							`264`

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 16 08:10 EDT 2024. Contains 374345 sequences. (Running on oeis4.)