A231950 - OEIS

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

A231950 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`18`
`3`		`64`
`4`		`236`
`5`		`888`
`6`		`3336`
`7`		`12512`
`8`		`46928`
`9`		`176032`
`10`		`660320`
`11`		`2476928`
`12`		`9291200`
`13`		`34852224`
`14`		`130734208`
`15`		`490397184`
`16`		`1839529216`
`17`		`6900259328`
`18`		`25883567616`
`19`		`97091868672`
`20`		`364201376768`
`21`		`1366156040192`
`22`		`5124588881920`
`23`		`19222848954368`
`24`		`72106842214400`

[4,18,64,236,888,3336,12512,46928,176032,660320, 2476928,9291200,34852224,130734208,490397184, 1839529216,6900259328,25883567616,97091868672, 364201376768,1366156040192,5124588881920, 19222848954368,72106842214400]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 14:32 EDT 2024. Contains 371960 sequences. (Running on oeis4.)