A305998 - OEIS

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

A305998 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`15`
`3`		`7`
`4`		`495`
`5`		`2145`
`6`		`69615`
`7`		`33915`
`8`		`245157`
`9`		`2523675`
`10`		`150225075`
`11`		`60480225`
`12`		`187751655`
`13`		`26397882693`
`14`		`7073942421`
`15`		`221214302595`
`16`		`26306570659215`
`17`		`362711807574025`
`18`		`315526198564395`
`19`		`154309366568181825`
`20`		`495353332454332275`
`21`		`13575552922770178725`

[1,15,7,495,2145,69615,33915,245157,2523675, 150225075,60480225,187751655,26397882693, 7073942421,221214302595,26306570659215, 362711807574025,315526198564395, 154309366568181825,495353332454332275, 13575552922770178725]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 05:16 EDT 2024. Contains 371906 sequences. (Running on oeis4.)