A054147 - OEIS

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

A054147 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`3`
`2`		`21`
`3`		`108`
`4`		`492`
`5`		`2100`
`6`		`8604`
`7`		`34272`
`8`		`133728`
`9`		`513648`
`10`		`1948560`
`11`		`7318080`
`12`		`27256896`
`13`		`100815936`
`14`		`370684608`
`15`		`1355996160`
`16`		`4938304512`
`17`		`17914202880`
`18`		`64760732928`
`19`		`233390693376`
`20`		`838784916480`
`21`		`3006980379648`
`22`		`10755352869888`

[0,3,21,108,492,2100,8604,34272,133728,513648, 1948560,7318080,27256896,100815936,370684608, 1355996160,4938304512,17914202880,64760732928, 233390693376,838784916480,3006980379648, 10755352869888]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)