A026948 - OEIS

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

A026948 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`8`
`4`		`58`
`5`		`272`
`6`		`1770`
`7`		`7428`
`8`		`46928`
`9`		`189808`
`10`		`1185645`
`11`		`4724160`
`12`		`29362806`
`13`		`116207424`
`14`		`720606705`
`15`		`2842936320`
`16`		`17610412600`
`17`		`69378730880`
`18`		`429579843435`
`19`		`1691519468760`
`20`		`10472653252550`
`21`		`41235710124400`
`22`		`255326054688320`
`23`		`1005560117623204`
`24`		`6227515552731528`
`25`		`24534901740913872`

[1,8,58,272,1770,7428,46928,189808,1185645, 4724160,29362806,116207424,720606705,2842936320, 17610412600,69378730880,429579843435, 1691519468760,10472653252550,41235710124400, 255326054688320,1005560117623204,6227515552731528, 24534901740913872]

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 20 23:17 EDT 2024. Contains 374461 sequences. (Running on oeis4.)