A089927 - OEIS

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

A089927 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`5`
`2`		`25`
`3`		`120`
`4`		`576`
`5`		`2760`
`6`		`13225`
`7`		`63365`
`8`		`303601`
`9`		`1454640`
`10`		`6969600`
`11`		`33393360`
`12`		`159997201`
`13`		`766592645`
`14`		`3672966025`
`15`		`17598237480`
`16`		`84318221376`
`17`		`403992869400`
`18`		`1935646125625`
`19`		`9274237758725`
`20`		`44435542668001`
`21`		`212903475581280`

[1,5,25,120,576,2760,13225,63365,303601,1454640, 6969600,33393360,159997201,766592645,3672966025, 17598237480,84318221376,403992869400, 1935646125625,9274237758725,44435542668001, 212903475581280]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 19:56 EDT 2024. Contains 371963 sequences. (Running on oeis4.)